{"id":226,"date":"2026-04-04T22:34:07","date_gmt":"2026-04-04T21:34:07","guid":{"rendered":"https:\/\/laywenrania.uk\/blog\/?page_id=226"},"modified":"2026-04-12T23:29:59","modified_gmt":"2026-04-12T22:29:59","slug":"laywenranian-navy","status":"publish","type":"page","link":"https:\/\/laywenrania.uk\/blog\/laywenranian-navy\/","title":{"rendered":"Laywenranian Navy"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Equipment<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Fast Attack Craft<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Iolaire<\/em>-class Missile Boat<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Commissioned in 1985, the <strong><em>Iolaire<\/em><\/strong> (eagle) class represented a optimization of the &#8216;Heavy Missile Boat&#8217; concept pioneered by the preceding <em>Earc-luachrach<\/em> (Molch) class. Despite a displacement increase to 350 tonnes, the <em>Dealanach<\/em> achieved a superior top speed of 37 knots\u2014a result of a refined length-to-beam ratio and a high-performance 12,000 kW triple-diesel propulsion suite. This restoration of high-velocity maneuverability was viewed by the Admiralty as a critical tactical requirement for the &#8216;Rapid Interdiction&#8217; roles envisioned in the late Cold War era.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The class retained the formidable eight-missile IUT-15 battery of its predecessor but introduced the modernised IUT-15B variant, providing enhanced surface-engagement range and kinetic stopping power. While the dedicated SAM launcher was omitted to prioritize speed and stability, the introduction of the 30 mm md. 81 CIWS offered a significant leap in automated point-defense capability against precision-guided munitions in a lightweight mount. Equipped with both hull-mounted and towed-array sonars, the <em>Iolaire <\/em>remains a potent dual-role platform, serving as the Federation&#8217;s primary high-speed littoral combatant into the 21st century.<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 1985 &#8211; present<\/li>\n\n\n\n<li>Displacement: 350 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 49 m\/8,6 m\/2,1 m<\/li>\n\n\n\n<li>Power: 3 x MACO 20V-TDM-463 Diesel engines (4&#8217;400 kW each) with 13&#8217;200 kW combined, 37 kn, 3 waterjets<\/li>\n\n\n\n<li>Range: 2&#8217;200 nm @ 20 kn<\/li>\n\n\n\n<li>Complement: 34<\/li>\n\n\n\n<li>Built: 24<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>2 x quad IUT-15B SSM launchers<\/td><td><em>2 x quad IUT-15<strong>C<\/strong> SSM launchers<\/em><\/td><\/tr><tr><td>1 x 40 mm md. 78 gun<\/td><td><em>1 x 40 mm md. <strong>05<\/strong> gun<\/em><\/td><\/tr><tr><td>1 x 30 mm md. 81 CIWS<\/td><td><em>1 x 30 mm md. 81 CIWS<\/em><\/td><\/tr><tr><td>1 x quad LBT-85 launcher (+12 on magazine)<\/td><td><em>1 x quad LBT-85<strong>B<\/strong> launcher (+12 on magazine)<\/em><\/td><\/tr><tr><td>removable Depth charge\/mine rails<\/td><td><em>removable DC\/mine rails<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>SIOM-45 Multifunction radar<\/td><td>SIOM-42 Multifunction radar<\/td><\/tr><tr><td>SUMA-37 Surface search\/navigation radar<\/td><td>SUMA-43 Surface search\/navigation radar<\/td><\/tr><tr><td>RSMT-22C fire control system<\/td><td>RSMT-22E fire control system<\/td><\/tr><tr><td>SDCL-34 Hull Sonar<\/td><td>SDCL-43 Hull Sonar<\/td><\/tr><tr><td>CTAI-32 ESM<\/td><td>CTAI-41 ESM<\/td><\/tr><tr><td>CIGA-39 EW Suite<\/td><td>CFAD-42 ECM Suite<\/td><\/tr><tr><td>ACNA-24 IFF<\/td><td>ACNA-45 IFF<\/td><\/tr><tr><td>GTAM-39 decoy launchers<\/td><td>GTAM-48 decoy launchers<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/commons.wikimedia.org\/wiki\/File:ORP_Grom_(korweta)_2.JPG\"><img decoding=\"async\" width=\"300\" height=\"187\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-2-300x187.jpeg\" alt=\"\" class=\"wp-image-202 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-2-300x187.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-2-1024x638.jpeg 1024w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-2-768x479.jpeg 768w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-2.jpeg 1280w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/187;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Konflikty.pl (Attribution), via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Frigates<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Aonran-M\u00f2r<\/em>-class frigate<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <em><em>Aonran-M\u00f2r<\/em><\/em>-class (Great Sentinel) frigate was introduced in 1985 to consolidate the Federation\u2019s escort tiers into a single, versatile platform. Designed by the <strong>Lasaireach Shipbuilding Union (C.L.L.)<\/strong>, the hull utilizes a cellular construction method, allowing for the rapid integration of mission-specific equipment. The class is the first in the fleet to feature a fully integrated aviation facility and a high-capacity vertical launch system (VLS) as standard equipment.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<p class=\"wp-block-paragraph\">The <em><em><em>Aonran-M\u00f2r<\/em><\/em><\/em> hull is optimized for sea-keeping in the North Reach, featuring a high-flared bow to reduce deck wetness. The internal layout is divided into twelve watertight compartments. Modular &#8220;weapon zones&#8221; allow for the main gun and VLS blocks to be replaced or upgraded without major structural cutting, a feature intended to extend the hull&#8217;s service life to 40 years.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The 40,000 kW CODAD plant is arranged in two independent engine rooms. Each room contains two diesel engines geared to a single shaft via a Multi-Input\/Single-Output (MISO) gearbox. This configuration provides high redundancy; the ship can maintain cruise speeds on a single engine or utilize all four for combat maneuvers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The ship acts as a &#8220;Centerpiece Escort&#8221; for task groups. Its VLS capacity allows it to provide local area air defense, while its hangar and towed array sonar make it a capable deep-water ASW platform.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 1986 &#8211; present<\/li>\n\n\n\n<li>Displacement: 3&#8217;200 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 122 m\/14,8 m\/4,2 m<\/li>\n\n\n\n<li>Power: 4 x MACO 20V-STDM-563 Diesel engines (10&#8217;000 kW each) CODAD with 40&#8217;000 kW combined, 31 kn, 2 shafts<\/li>\n\n\n\n<li>Range: 6&#8217;500 nm @ 16 kn<\/li>\n\n\n\n<li>Complement: 150<\/li>\n\n\n\n<li>Hangar for 1 helicopter<\/li>\n\n\n\n<li>Built: 16<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>1 x 100 mm md. 69 DP gun<\/td><td><em>1 x 100 mm md. 69 DP gun<\/em><\/td><\/tr><tr><td>2 x 30 mm\/55 md. 69\/81 CIWS<\/td><td><em>2 x 30 mm\/55 md. 69\/<strong>05<\/strong> CIWS<\/em><\/td><\/tr><tr><td>2 x 30 mm\/60 md.60\/80S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td>2 x 30 mm\/60 md.60\/05S &#8220;Seabhag 30&#8221; revolver cannons<\/td><\/tr><tr><td>1x 16-cell self-defence VLS (quad-pack LBT-21V)<\/td><td><em>1x 16-cell self-defence VLS (quad-pack LBT-21<strong>G<\/strong>)<\/em><\/td><\/tr><tr><td>2 x quad IUT-15B SSM launchers<\/td><td><em>2 x quad IUT-15<strong>C<\/strong> SSM launchers<\/em><\/td><\/tr><tr><td>2 x triple 400 mm torpedo launchers<\/td><td><em>2 x triple 400 mm torpedo launchers<\/em><\/td><\/tr><tr><td>removable Depth charge\/mine rails<\/td><td><em>removable DC\/mine rails<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>SIOM-41 Multifunction radar<\/td><td>SIOM-42 Multifunction radar<\/td><\/tr><tr><td>SUMA-37 Surface search\/navigation radar<\/td><td>SUMA-43 Surface search\/navigation radar<\/td><\/tr><tr><td>RSMT-22C fire control system<\/td><td>RSMT-22E fire control system<\/td><\/tr><tr><td>SDCL-35 Hull Sonar<\/td><td>SDCL-45 Hull Sonar<\/td><\/tr><tr><td>STAS-39 towed array sonar<\/td><td><em>STAS-39<strong>A<\/strong> towed array sonar<\/em><\/td><\/tr><tr><td>CTAI-31 ESM<\/td><td>CTAI-42 ESM<\/td><\/tr><tr><td>CIGA-39 EW Suite<\/td><td>CFAD-42 ECM Suite<\/td><\/tr><tr><td>ACNA-24 IFF<\/td><td>ACNA-45 IFF<\/td><\/tr><tr><td>GTAM-39 decoy launchers<\/td><td>GTAM-48 decoy launchers<\/td><\/tr><tr><td>META-33 Torpedo decoys<\/td><td><em>META-33 Torpedo decoys<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-10.jpeg\"><img decoding=\"async\" width=\"300\" height=\"201\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-10-300x201.jpeg\" alt=\"\" class=\"wp-image-227 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-10-300x201.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-10-1024x686.jpeg 1024w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-10-768x514.jpeg 768w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-10.jpeg 1280w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/201;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">U.S. Navy photo by Mass Communication Specialist Seaman Apprentice Shonna Cunningham\/Released, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Cruisers<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><em><strong>Banrigh nan Tonna<\/strong><\/em>-class cruiser<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Banrigh nan Tonna<\/strong>-class cruisers (<em>Queen of the Waves<\/em>) is a long\u2011range, multi\u2011role guided\u2011missile cruiser operated by Laywenrania\u2019s Navy since 1990. Designed as a&nbsp;regional flagship and escort platform, it balances potent air\u2011defense, anti\u2011submarine warfare, and a strike capability within a compact, efficient hull suited to the archipelago\u2019s distant island chains and open\u2011ocean patrols.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<p class=\"wp-block-paragraph\">Its CODAG propulsion system\u2011package \u2014 two MACO TuM\u201158 turbines and two MACO 20V\u2011STDM\u2011563 diesel engines, delivering 44 MW total \u2014 pushes the ship to&nbsp;32 knots&nbsp;and gives it a&nbsp;6,500\u2011nautical\u2011mile range at 16 knots, ideal for extended patrols and long\u2011range deployments without heavy reliance on overseas bases.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The&nbsp;ship\u2019s armament&nbsp;is centered on a&nbsp;96\u2011cell standard VLS&nbsp;capable of launching surface\u2011to\u2011air missiles (SAMs), ASROC\u2011type anti\u2011submarine rockets, and medium\u2011range strike munitions. A single&nbsp;100 mm md. 87 dual\u2011purpose gun&nbsp;provides naval gunfire support and anti\u2011surface capability, while&nbsp;two 30 mm md. 81 CIWS mounts&nbsp;offer close\u2011in defense against missiles and aircraft. Two quad&nbsp;IUT\u201115C anti\u2011ship missile launchers&nbsp;give the class a credible anti\u2011surface strike punch, backed by&nbsp;two triple 400 mm torpedo launchers&nbsp;for ASW and short\u2011range anti\u2011ship engagements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sensors and electronic warfare&nbsp;have been systematically modernized over the decades. The&nbsp;SIOM\u201134 PESA multifunction radar&nbsp;provides long\u2011range air search and guidance for the SAMs, while the&nbsp;RESA\u201142 AESA radar&nbsp;enhances multi\u2011role tracking and low\u2011probability\u2011of\u2011intercept performance. With a&nbsp;crew of 260&nbsp;and a&nbsp;single\u2011helicopter hangar, the Banrigh nan Tonna\u2011class is optimized for&nbsp;autonomous, long\u2011range operations&nbsp;around Laywenrania\u2019s vast archipelago. It serves as a&nbsp;task\u2011force core, escorting logistics and support vessels, conducting blue\u2011water patrols, and projecting layered defense during regional crises. <\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 1990 &#8211; present<\/li>\n\n\n\n<li>Displacement: 7&#8217;300 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 161 m\/21 m\/6 m<\/li>\n\n\n\n<li>Power: CODAG with 2 x MACO TuM-58 turbines (22 MW each) and 2 x MACO 20V-STDM-563 (10 MW each) Diesel engines with 20 MW combined, 32 kn<\/li>\n\n\n\n<li>Range: 6&#8217;500 nm @ 16 kn<\/li>\n\n\n\n<li>Complement: 260<\/li>\n\n\n\n<li>Hangar for 2 helicopters<\/li>\n\n\n\n<li>Built: 2 (Banrigh nan Tonna, NicNaoimhin)<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>1 x 100 mm md. 87 DP gun<\/td><td><em>1 x 100 mm md. 87 DP gun<\/em><\/td><\/tr><tr><td>2 x 30 mm\/55 md. 69\/81 CIWS<\/td><td><em>2 x 30 mm\/55 md. 69\/05 CIWS<\/em><\/td><\/tr><tr><td>2 x 30 mm\/60 md.60\/80S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td>2 x 30 mm\/60 md.60\/05S &#8220;Seabhag 30&#8221; revolver cannons<\/td><\/tr><tr><td>96-cell Standard VLS<\/td><td><em>96-cell Standard VLS<\/em><\/td><\/tr><tr><td>2 x quad IUT-15B SSM launchers<\/td><td><em>2 x quad IUT-15<strong>C<\/strong> SSM launchers<\/em><\/td><\/tr><tr><td>2 x triple 400 mm torpedo launchers<\/td><td><em>2 x triple 400 mm torpedo launchers<\/em><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>SATS-31 3D air search radar<\/td><td>RESA-44 air and surface surveillance radar<\/td><\/tr><tr><td>SIOM-41 Multifunction radar<\/td><td>RESA-42 air and surface search, tracking, and guidance radar<\/td><\/tr><tr><td>SUMA-37 Navigation radar<\/td><td>SUMA-43 Navigation radar<\/td><\/tr><tr><td>RSMT-22C fire control system<\/td><td>RSMT-22E fire control system<\/td><\/tr><tr><td>SDCL-35 Hull Sonar<\/td><td>SDCL-45 Hull Sonar<\/td><\/tr><tr><td>STAS-39 towed array sonar<\/td><td><em>STAS-39<strong>A<\/strong> towed array sonar<\/em><\/td><\/tr><tr><td>CTAI-31 ESM<\/td><td>CTAI-42 ESM<\/td><\/tr><tr><td>CIGA-39 EW Suite<\/td><td>CFAD-42 ECM Suite<\/td><\/tr><tr><td>ACNA-24 IFF<\/td><td>ACNA-45 IFF<\/td><\/tr><tr><td>GTAM-39 decoy launchers<\/td><td>GTAM-48 decoy launchers<\/td><\/tr><tr><td>META-33 Torpedo decoys<\/td><td>META-44 torpedo decoys<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/e\/ea\/German_frigate_Bayern_%28F217%29_underway_in_the_Baltic_Sea_on_10_June_2008_%28080610-N-3396B-067%29.jpg\"><img decoding=\"async\" width=\"300\" height=\"215\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-32-300x215.jpeg\" alt=\"\" class=\"wp-image-352 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-32-300x215.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-32.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/215;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Mass Communication Specialist Second Class Mike Banzhaf, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><strong>Bantighearna nan Speur<\/strong><\/em>-class cruiser<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The&nbsp;<strong>Bantighearna nan Speur-class<\/strong>&nbsp; (<em>Lady of the Skies<\/em>) is a guided\u2011missile cruiser operated by the Laywenranian Navy as a successor to the earlier Banrigh nan Tonna\u2011class destroyers. Designed primarily for&nbsp;area\u2011air defence and limited ballistic missile defence, the class serves as a regional escort and flagship platform for task forces operating in the archipelago\u2019s open and littoral waters.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<p class=\"wp-block-paragraph\">Two units have been built:&nbsp;<strong>Bantighearna nan Speur<\/strong>&nbsp;and&nbsp;<strong>Bana\u2011Phrionnsa an Tuath<\/strong>. Commissioned from 2005 onward, the class maintains similar core hull parameters as its predecessor, with a standard displacement of 7,750 tonnes, a length of 165 metres, a beam of 21 metres, and a draft of 6 metres. The propulsion plant is a combined diesel\u2011and\u2011gas arrangement with two high\u2011power turbines providing the majority of installed shaft power and two diesel engines for efficient cruising, giving a maximum speed of 34 knots and a range of 6,500 nautical miles at 16 knots. The ship carries a complement of 265 personnel and accommodates two helicopters in a hangar, supporting sustained anti\u2011submarine warfare, reconnaissance, and logistics operations.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Armament<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The primary armament centres on a 96\u2011cell cold-launch vertical launching system used for medium- to long\u2011range surface\u2011to\u2011air missiles, anti\u2011submarine warfare ordnance, and land\u2011attack and anti\u2011ship munitions depending on loadout. A single 100 mm dual\u2011purpose gun provides naval gunfire support and surface engagement capability, while two 30 mm close\u2011in weapon systems offer point defence against aircraft and missiles. Two quad launchers for medium\u2011range surface\u2011to\u2011surface missiles enhance anti\u2011ship capability, and two triple 400 mm torpedo launchers contribute to the ship\u2019s anti\u2011submarine warfare role. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sensors and electronic warfare<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The ship\u2019s sensor suite is oriented toward long\u2011range air and surface surveillance, with a dedicated volume\u2011search radar providing three\u2011dimensional air tracking and a complementary multifunction radar handling horizon\u2011search, tracking, and fire\u2011control guidance. A navigation radar supports surface\u2011picture compilation and coastal navigation, while the fire\u2011control and combat management system integrates sensor inputs with the vertical launching system to coordinate air\u2011defence engagements. For under\u2011water warfare, a hull\u2011mounted sonar with three\u2011dimensional search capability is paired with a towed array sonar suite, giving layered detection and classification performance. Electronic warfare includes an electronic support measures suite, a directional electronic countermeasures system, and an identification\u2011friend\u2011or\u2011foe subsystem, supplemented by decoy launchers and torpedo decoys to mitigate both missile and torpedo threats.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Role and service<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Bantighearna nan Speur\u2011class fills the role of a&nbsp;<strong>regional air\u2011defence and ballistic\u2011threat screening platform<\/strong>, often operating as a flagship or core escort for task groups deploying convoys, amphibious forces, or logistical support vessels. Its combination of long\u2011range air\u2011search capability, multi\u2011mission sensor suite, and helicopter facilities allows it to conduct independent patrols as well as integrated operations within a wider naval alliance framework. The design reflects a doctrine emphasising resilient, networked defence rather than reliance on a single ship\u2011type for air\u2011defence coverage.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 2005 &#8211; present<\/li>\n\n\n\n<li>Displacement: 7&#8217;750 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 165 m\/21 m\/6 m<\/li>\n\n\n\n<li>Power: CODAG with 2 x MACO TuM-69 turbines (32 MW each) and 2 x MACO 20V-STDM-563 (10 MW each) Diesel engines with 20 MW combined, 34 kn<\/li>\n\n\n\n<li>Range: 6&#8217;500 nm @ 16 kn<\/li>\n\n\n\n<li>Complement: 265<\/li>\n\n\n\n<li>Hangar for 2 helicopters<\/li>\n\n\n\n<li>Built: 2 (Bantighearna nan Speur, Bana-Phrionnsa an Tuath)<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>1 x 100 mm md. 87 DP gun<\/td><td><\/td><\/tr><tr><td>2 x 30 mm\/55 md. 69\/05 CIWS<\/td><td><\/td><\/tr><tr><td>2 x 30 mm\/60 md.60\/05S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td><\/td><\/tr><tr><td>96-cell Standard VLS<\/td><td><\/td><\/tr><tr><td>2 x quad IUT-15C SSM launchers<\/td><td><\/td><\/tr><tr><td>2 x triple 400 mm torpedo launchers<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>RESA-44 air and surface surveillance radar<\/td><td><\/td><\/tr><tr><td>RESA-42 air and surface search, tracking, and guidance radar<\/td><td><\/td><\/tr><tr><td>SUMA-37 Navigation radar<\/td><td>SUMA-43 Navigation radar<\/td><\/tr><tr><td>RSMT-22E fire control system<\/td><td><\/td><\/tr><tr><td>SDCL-45 Hull Sonar<\/td><td><\/td><\/tr><tr><td>SGTF-42 Sonar Suite<\/td><td><\/td><\/tr><tr><td>CTAI-42 ESM<\/td><td><\/td><\/tr><tr><td>CFAD-42 ECM Suite<\/td><td><\/td><\/tr><tr><td>ACNA-45 IFF<\/td><td><\/td><\/tr><tr><td>GTAM-48 decoy launchers<\/td><td><\/td><\/tr><tr><td>META-44 torpedo decoys<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-34.jpeg\"><img decoding=\"async\" width=\"300\" height=\"200\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-34-300x200.jpeg\" alt=\"\" class=\"wp-image-358 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-34-300x200.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-34.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/200;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Commander, U.S. Naval Forces Europe-Africa\/U.S. 6th Fleet, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Submarines<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Breac<\/em>-Class Submarine<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Commissioned in 1992, the <em>Breac<\/em>-class is one of the Federation\u2019s most advanced non-nuclear patrol submarines. Displacing 2,700 tonnes, the hull was widened to 10,2 meters, providing the internal volume necessary for a X-rudder configuration and an increase in automated combat systems. The <em>Breac<\/em> was the first class to integrate a Towed Array Sonar into a conventional diesel-electric hull, allowing the boat to detect threats miles behind its own acoustic &#8220;baffles.&#8221; Designed for the post-Cold War era, it serves as a versatile &#8220;Information Hub,&#8221; capable of deploying special forces, conducting long-range strategic strikes, and maintaining silent vigils in contested waters.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<p class=\"wp-block-paragraph\">The 10-meter beam allows for a Triple-Resilient Mounting system. Every major component, including the diesel generators and the propulsion motor, is suspended on multiple layers of rubber and hydraulic dampers, virtually eliminating the transmission of mechanical noise to the water. At 4 knots, the <em>Breac<\/em> is statistically indistinguishable from ambient ocean background noise.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Replacing the traditional &#8220;+&#8221; shaped tail fins, the <em>Breac<\/em> features an X-rudder. This provides superior maneuverability in shallow archipelago waters and allows the boat to &#8220;sit&#8221; on the seabed more safely during silent-running ambushes. All four surfaces provide both horizontal and vertical control, offering high redundancy if one fin is damaged. Despite being larger than the <em><em>Tarr-geal<\/em><\/em>,  the crew has been reduced to 70. This reduction allowed for significantly improved &#8220;Habitability&#8221; (private bunks, better air scrubbers), which in turn increased the crew&#8217;s combat effectiveness during 60-day deployments.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In Service: 1992 &#8211; present<\/li>\n\n\n\n<li>Displacement: 2&#8217;700 t surfaced<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 77 m\/10,2 m\/7,4 m<\/li>\n\n\n\n<li>Power: diesel-electric propulsion, speed of 12 knots surfaced and 20 knots submerged<\/li>\n\n\n\n<li>Range: with snorkel 8&#8217;000 nm @ 7 kn, submerged 500 nm @ 3 kn<\/li>\n\n\n\n<li>Armament: 6 x 550mm bow Torpedo Launchers, 18 Torpedoes, 24 Mines, land attack cruise missiles, anti-ship missiles<\/li>\n\n\n\n<li>Sensors: active sonar, flank arrays, towed sonar, passive sonar, ESM, echolot, radar<\/li>\n\n\n\n<li>Complement: 70<\/li>\n\n\n\n<li>Built: 6<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-16.jpeg\"><img decoding=\"async\" width=\"300\" height=\"200\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-16-300x200.jpeg\" alt=\"\" class=\"wp-image-246 lazyload\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/200;aspect-ratio:16\/9;object-fit:cover\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-16-300x200.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-16-768x512.jpeg 768w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-16.jpeg 960w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Kaij\u014d Jieitai \uff08\u6d77\u4e0a\u81ea\u885b\u968a \/ Japan Maritime Self-Defense Force\uff09, CC BY 4.0 <a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\">https:\/\/creativecommons.org\/licenses\/by\/4.0<\/a>, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em>S\u00ecthean<\/em>-class Submarine<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Commissioned in 1998, the <em>S\u00ecthean<\/em>-class (fairy hill) was the first Federation submarine to fully move away from the traditional circular cross-section toward a &#8220;non-circular&#8221; or &#8220;leaf-shaped&#8221; hull. This design allowed for the integration of massive, conformal flank sonar arrays while maintaining a low acoustic cross-section. The name <em>S\u00ecthean<\/em> refers to the mythical &#8220;hollow hills&#8221; of Gaelic folklore\u2014places where things are hidden from human sight\u2014reflecting the boat&#8217;s role as an invisible, deep-water fortress. With a length of 82 meters and a displacement of 3,000 tonnes, it is the largest and most lethal conventional submarine ever produced by the C.L.L.. It is the first class of submarines in Laywenrania to use AIP.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In Service: 1998 &#8211; present<\/li>\n\n\n\n<li>Displacement: 2&#8217;900 t surfaced<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 82,1 m\/8,9 m\/7,4 m<\/li>\n\n\n\n<li>Power: diesel-electric propulsion, speed of 13 knots surfaced and 20 knots submerged<\/li>\n\n\n\n<li>Range: 6&#8217;100 nm AIP endurance at 6,5 kn (estimated)<\/li>\n\n\n\n<li>Armament: 6 x 550mm bow Torpedo tubes (24 Torpedoes, Mines, land attack cruise missiles or anti-ship missiles), decoy launchers<\/li>\n\n\n\n<li>Sensors: active sonar, passive sonar, ESM, echolot, radar<\/li>\n\n\n\n<li>Complement: 65<\/li>\n\n\n\n<li>Diving depth: unknown<\/li>\n\n\n\n<li>Built: 6<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-17.jpeg\"><img decoding=\"async\" width=\"300\" height=\"199\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-17-300x199.jpeg\" alt=\"\" class=\"wp-image-247 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-17-300x199.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-17-768x510.jpeg 768w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-17.jpeg 960w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/199;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Kaij\u014d Jieitai \uff08\u6d77\u4e0a\u81ea\u885b\u968a \/ Japan Maritime Self-Defense Force\uff09, CC BY 4.0 <a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\">https:\/\/creativecommons.org\/licenses\/by\/4.0<\/a>, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Cailleach<\/em>-class Submarine<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Introduced in 2009, the <em>Cailleach<\/em>-class (Veiled One) was engineered to resolve the &#8220;Snorkel Gap&#8221;\u2014the vulnerability of conventional submarines when recharging batteries. By integrating four C.L.L. Stirling AIP units, the class can maintain a silent, low-speed creep for 14 days without surfacing. The hull utilizes a high-tensile steel alloy and an advanced non-circular &#8220;Leaf-Shape&#8221; cross-section, which optimizes the placement of massive conformal flank sonar arrays. This &#8220;Veiled&#8221; nature ensures the submarine remains an acoustic ghost, even when operating in high-traffic maritime corridors.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In Service: 2009- present<\/li>\n\n\n\n<li>Displacement: 2&#8217;950 t surfaced<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 84 m\/9,0 m\/8,5 m<\/li>\n\n\n\n<li>Power: diesel-electric propulsion, AIP, speed of 13 knots surfaced and 20 knots submerged<\/li>\n\n\n\n<li>Range: 6&#8217;100 nm AIP endurance at 6,5 kn (estimated)<\/li>\n\n\n\n<li>Armament: 6 x 550mm bow Torpedo tubes (30 Torpedoes, Mines, land attack cruise missiles or anti-ship missiles), decoy launchers<\/li>\n\n\n\n<li>Sensors: active sonar, passive sonar, ESM, echolot, radar<\/li>\n\n\n\n<li>Complement: 65<\/li>\n\n\n\n<li>Diving depth: unknown, estimated 450 m<\/li>\n\n\n\n<li>Built: 12<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18.jpeg\"><img decoding=\"async\" width=\"300\" height=\"200\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18-300x200.jpeg\" alt=\"\" class=\"wp-image-248 lazyload\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/200;aspect-ratio:16\/9;object-fit:cover\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18-300x200.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18-1024x682.jpeg 1024w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18-768x511.jpeg 768w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18-1536x1022.jpeg 1536w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18-1600x1065.jpeg 1600w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-18.jpeg 1920w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">By PhantomII.Rider &#8211; Own work, CC BY-SA 4.0, https:\/\/commons.wikimedia.org\/w\/index.php?curid=127790041<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mine Countermeasure Vessels<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Carran<\/em>-class Minelayer<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Carran-class<\/strong> (<em>The Sand-eel<\/em>) marks the transition from coastal &#8220;sweepers&#8221; to blue-water capable Mine Countermeasures Vessels (MCMV). Commissioned in the late 1970s to serve alongside the <em>An Gath-Dubh<\/em>, the <em>Carran<\/em> was designed for the &#8220;outer archipelago&#8221;\u2014the deep-water trenches and high-seas approaches where larger, more dangerous naval mines were likely to be deployed. At 752 tonnes, she is nearly four times the size of the <em>An Gath-Dubh<\/em>, trading a degree of shallow-water agility for the stability and endurance required for long-term station-keeping in the open ocean.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<p class=\"wp-block-paragraph\">The <em>Carran<\/em>-class was a pioneer in large-scale composite architecture. To handle a displacement of over 750 tonnes while maintaining a non-magnetic signature, the hull was constructed using a sandwich of high-strength Glass-Reinforced Plastic (GRP) and foam-core bracing. This &#8220;monocoque&#8221; construction allowed for a significantly larger internal volume, necessary to house the sophisticated mine-disposal electronics and increased crew complement. Despite her 60-meter length and 9.8-meter beam, the class maintains a remarkably shallow draft of 2.2 meters, allowing her to transition seamlessly from deep-water mine hunting to supporting littoral operations. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Propulsion is provided by two low-magnetic-signature diesel engines generating 4,000 kW. While her top speed of 22 knots is slightly lower than the <em>An Gath-Dubh<\/em>, the <em>Carran<\/em> was designed for &#8220;staying power&#8221; rather than sprinting.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The class introduced the federation&#8217;s first Unmanned Underwater Vehicle (UUV) Mine Disposal System. Rather than risking the ship or a diver, the <em>Carran<\/em> deploys remotely operated submersibles to identify and neutralize mines via a high-definition fiber-optic link. This is supported by a sophisticated sonar suite capable of distinguishing between natural seafloor debris and man-made threats in high-clutter environments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For self-defense, the class carries the 30 mm md. 69 CIWS, a more refined version of the previous generation&#8217;s fire-control system, capable of intercepting sea-skimming missiles. The addition of a modern IFF (Identification Friend or Foe) system and an upgraded RWR ensures the <em>Carran<\/em> can operate safely as part of a larger task force or under the umbrella of coastal land-based air defense. While primarily a mine hunter, the class retains its traditional &#8220;sting,&#8221; featuring modular rails for minelaying and depth charge deployment.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 1979 &#8211; present<\/li>\n\n\n\n<li>Displacement: 752 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 60 m\/9,8 m\/2,2 m<\/li>\n\n\n\n<li>Power: CODLAD 2 x MACO 12V-TDM-443 Diesel engines (1,7 MW each) with 3&#8217;400 kW combined, 21 kn<\/li>\n\n\n\n<li>Range: 4500 nm @ 15 kn<\/li>\n\n\n\n<li>Complement: 42<\/li>\n\n\n\n<li>Built: 12<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>1 x 30 mm\/55 md. 69 CIWS<\/td><td><em>1 x 30 mm\/55 md. 69\/<strong>05<\/strong> CIWS<\/em><\/td><\/tr><tr><td>Rails for Mines and Depth Charges<\/td><td><em>Rails for Mines and Depth Charges<\/em><\/td><\/tr><tr><td>UUV Mine Disposal System<\/td><td>UUV Mine Disposal System<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>SDCL-14M hull sonar<\/td><td>SDCL-34M hull sonar<\/td><\/tr><tr><td>SUMA-26 Navigation radar<\/td><td>SUMA-37 Navigation radar<\/td><\/tr><tr><td>RSMT-22C fire control system<\/td><td><em>RSMT-22<strong>E<\/strong> fire control system<\/em><\/td><\/tr><tr><td>CTAI-22 ESM<\/td><td>CTAI-42 ESM<\/td><\/tr><tr><td>ACNA-24 IFF<\/td><td>ACNA-45 IFF<\/td><\/tr><tr><td>GTAM-25 decoy launchers<\/td><td>GTAM-48 decoy launchers<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/19\/HMS_Hurworth_3_%2833222198786%29.jpg\/960px-HMS_Hurworth_3_%2833222198786%29.jpg\"><img decoding=\"async\" width=\"300\" height=\"200\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-20-300x200.jpeg\" alt=\"\" class=\"wp-image-259 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-20-300x200.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-20-768x512.jpeg 768w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-20.jpeg 960w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/200;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Ronnie Macdonald from Chelmsford and Largs, United Kingdom, CC BY 2.0 <a href=\"https:\/\/creativecommons.org\/licenses\/by\/2.0\">https:\/\/creativecommons.org\/licenses\/by\/2.0<\/a>, via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Amphibious Ships<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Carraig-class<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Carraig-class<\/strong> is a series of six landing ship tanks operated by the Federation Navy. Commissioned starting in 2000, the class was designed to provide the Federation with a dedicated beaching capability for amphibious operations within archipelagic environments. Unlike the larger <em>Eilean<\/em> and <em>Cala<\/em> classes, the <em>Carraig<\/em>-class is optimized for &#8220;hard-beaching&#8221; maneuvers, allowing for the direct delivery of heavy armor and personnel onto unimproved shorelines.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<h5 class=\"wp-block-heading\" id=\"dimensions-and-hull\"><strong>Dimensions and hull<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The <em>Carraig<\/em>-class features a shallow-draft, double-bottomed hull specifically reinforced for landing operations. The bow is equipped with a large, two-part bow door and an internal articulating ramp capable of supporting main battle tanks. To facilitate beaching, the ship utilizes a high-capacity ballast system, allowing the crew to adjust the trim and &#8220;pin&#8221; the vessel to the seabed during offloading.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The 3.0 m draft is achieved through a flat-bottomed hull design in the forward two-thirds of the vessel, transitioning to a specialized stern section housing the waterjet propulsion units.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"propulsion-and-performance\">Propulsion and performance<\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The propulsion system utilises a Combined Diesel and Diesel (CODAD) arrangement. Two MACO 20V-STDM-553 engines provide a total of 7 MW to two stern-mounted waterjets. The use of waterjets instead of traditional propellers prevents mechanical damage during shallow-water approaches and provides the high static thrust required to retract the vessel from the beach after cargo discharge. Maneuverability in constrained inlets is further enhanced by an integrated bow thruster.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"well-deck-and-surface-lift\"><strong>Vehicle deck<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The main tank deck can accommodate approximately 12 main battle tanks or up to 22 armored personnel carriers. The deck is accessible via the bow ramp and a stern gate for Ro-Ro operations. The ship also has&nbsp;<strong>modular cargo spaces<\/strong>&nbsp;for fuel, ammunition, and stores sufficient to support short\u2011term amphibious operations or logistics support without replenishment. The bow\u2011door and ramp can be operated directly from the ship\u2019s main deck and are designed to support beach\u2011landings over unprepared or minimally improved shores. Four smaller LCVP MK5 that can carry thirty-five men or two light trucks are carried on davits, two each side of the ship\u2019s superstructure.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"aviation-facilities\"><strong>Aviation facilities<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">An aft helicopter deck provides a landing spot for one medium-lift helicopter or multiple unmanned aerial vehicles (UAVs). While the ship lacks a permanent hangar, it can support VERTREP (Vertical Replenishment) and medical evacuation missions.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"crew-and-accommodation\"><strong>Crew and accommodation<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship carries a complement of about&nbsp;<strong>87 crew<\/strong>&nbsp;and&nbsp;<strong>up to 350 marines<\/strong>&nbsp;at full load. Crew accommodation is arranged in several decks within the superstructure and hull. The ship also has modular storage and bunks that can be reconfigured for&nbsp;humanitarian\u2011relief and disaster\u2011response missions, including temporary housing for displaced civilians if required. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"armament-and-selfdefence\"><strong>Armament and self\u2011defence<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Carraig\u2011class carries a&nbsp;light self\u2011defence armament suite, consistent with its role as a regional\u2011scale amphibious transport and logistics vessel. The ship is fitted with&nbsp;one 100 mm dual\u2011purpose naval gun&nbsp;for&nbsp;shore\u2011bombardment&nbsp;and&nbsp;anti\u2011small\u2011craft fire, with a moderate rate of fire and guided\u2011fuze capability. Close\u2011in defence is provided by&nbsp;two 30 mm CIWS mounts, arranged to give&nbsp;360\u2011degree coverage&nbsp;and support&nbsp;anti\u2011missile and anti\u2011small\u2011craft defence. The ship also carries&nbsp;two 40\u2011barrel 120 mm rocket launchers, providing&nbsp;area\u2011effect fire support&nbsp;for landing operations and limited fire\u2011support against shore\u2011targets. Additionally, the ship is fitted with&nbsp;two twin launchers for LBT\u201185 man\u2011portable air\u2011defence systems (MANPADS), providing a modest&nbsp;very\u2011short\u2011range air\u2011defence capability&nbsp;against low\u2011altitude aircraft and helicopters. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"sensors-and-electronic-warfare\"><strong>Sensors and electronic warfare<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is equipped with a multipurpose radar (SIOM\u201141\u2011type) providing medium\u2011range air and surface surveillance with a coverage radius of approximately 100\u2013150 nautical miles. A separate navigation and surface\u2011search radar (SUMA\u201137\u2011type) is integrated into the ship\u2019s plotting and navigation systems for harbour\u2011manoeuvring, coastal navigation, and littoral\u2011environment operations. Fire\u2011control and combat\u2011management functions are handled by an RSMT\u201122D\u2011type system, providing radar\u2011guided tracking and weapon\u2011control support for the 100 mm gun, 30 mm CIWS, and rocket launchers. The ship also carries an electronic support measures suite (CTAI\u201142\u2011type), a directional electronic\u2011countermeasures system (CFAD\u201142\u2011type), and an identification\u2011friend\u2011or\u2011foe subsystem (ACNA\u201145\u2011type). Decoy launchers (GTAM\u201148\u2011type) are fitted for missile\u2011defence and anti\u2011radar deception, providing limited soft\u2011kill protection against incoming ordnance.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 2000 &#8211; present<\/li>\n\n\n\n<li>Displacement: 4&#8217;000 t full<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 100m\/16 m\/3 m<\/li>\n\n\n\n<li>Power: CODAD 2 x MACO 20V\u2011STDM\u2011553 Diesel engines (3,5 MW each) with 7 MW combined, 15 kn<\/li>\n\n\n\n<li>Range: 3500 nm @ 12 kn<\/li>\n\n\n\n<li>Complement: 87 + 350 Marines<\/li>\n\n\n\n<li>Capacity: 4 LCVP + 12 tanks or 22 APCs<\/li>\n\n\n\n<li>Aviation: 1 helipad<\/li>\n\n\n\n<li>Built: 12<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>1 x 100 mm md. 87 DP gun<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>2 x 30 mm\/55 md. 69\/81 CIWS<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>2 x 30 mm\/60 md.60\/80S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td>&#8211;<\/td><\/tr><tr><td>2&nbsp;x twin LBT-85 launchers (+16 on magazine)<\/td><td><\/td><\/tr><tr><td>2 x 40-barrel 120 mm rocket launcher<\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>SIOM-41 Multifunction radar<\/td><td>&#8211;<\/td><\/tr><tr><td>SUMA-37 Navigation radar<\/td><td>SUMA-43 Navigation radar<\/td><\/tr><tr><td>RSMT-22D fire control system<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>CTAI-42 ESM<\/td><td>&#8211;<\/td><\/tr><tr><td>CFAD-42 ECM Suite<\/td><td><\/td><\/tr><tr><td>ACNA-45 IFF<\/td><td>&#8211;<\/td><\/tr><tr><td>GTAM-48 decoy launchers<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/e\/e6\/28bintuni2OK.jpg\"><img decoding=\"async\" width=\"300\" height=\"230\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-37-300x230.jpeg\" alt=\"\" class=\"wp-image-378 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-37-300x230.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-37.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/230;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Indonesian Navy, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Cala-class<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The&nbsp;<strong>Cala\u2011class<\/strong>&nbsp;is a class of two landing platform docks operated by the Maritime Vigilant Authority to supplement the larger E\u00f2r\u2011nan\u2011Grian\u2011class landing helicopter docks. Commissioned in 2003 and 2004, the Cala\u2011class provides a regional\u2011scale amphibious platform oriented toward over\u2011the\u2011horizon landings, helicopter\u2011assisted resupply, and secondary amphibious assault support. The design draws on elements of late\u201120th\u2011century LPD layouts, but incorporates a limited hangar capability to support rotary\u2011lift operations.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<h5 class=\"wp-block-heading\" id=\"dimensions-and-hull\"><strong>Dimensions and hull<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The class displaces approximately 13,500 tonnes standard and around 18,500 tonnes at full load. The hull measures about 181 metres in length, 27 metres in beam, and a maximum draft of 6.5 metres. This configuration allows access to regional ports and island\u2011group harbours without requiring deep\u2011water infrastructure. The ship is constructed in steel with a double\u2011bottom amidships and a subdivided compartment layout intended to limit flooding and sustain operations after limited combat damage.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"propulsion-and-performance\"><strong>Propulsion and performance<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is powered by a diesel\u2011electric propulsion system. Four MACO\u2011type medium\u2011speed diesel engines drive electric generators that feed into an internal bus. Two electric propulsion motors drive two shafts with controllable\u2011pitch propellers, giving a maximum speed of 21 knots. The diesel\u2011electric arrangement reduces mechanical vibration, improves fuel efficiency at cruising speeds of 16\u201318 knots, and enhances survivability through distributed power generation. At 16\u201318 knots, the ship has a range of about 8,500 nautical miles. The propulsion system allows for continuous\u2011duty operation in a mixed role of amphibious assault, logistics support, and occasional rapid redeployment.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"well-deck-and-surface-lift\"><strong>Well deck and surface lift<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Cala\u2011class incorporates a large floodable well deck at the stern that can accommodate three air\u2011cushioned landing craft or four conventional LCU\u2011style landing craft. Four smaller LCVP MK5 that can carry thirty-five men or two light trucks are carried on davits, two each side of the ship&#8217;s superstructure. The well deck is flooded and drained rapidly to support repeated embarkation and disembarkation cycles during amphibious operations. Forward of the well deck is a main vehicle deck that provides space for approximately 800 tonnes of armored vehicles and support equipment. On a typical configuration, this corresponds to about 30 armored fighting vehicles. The ship also has dedicated cargo holds for fuel, ammunition, and stores sufficient to support 7\u201310\u2011day amphibious operations without external replenishment.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"aviation-facilities\"><strong>Aviation facilities<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Cala\u2011class incorporates a hangar. The ship features a compact hangar located aft of the superstructure and forward of the flight deck, capable of accommodating up to four medium\u2011lift helicopters in a stacked\u2011park configuration. The hangar includes basic maintenance and fueling facilities for rotary\u2011lift operations, with limited ordnance support. Behind the hangar is a short flight deck that provides for one or two simultaneous helicopter landings, allowing for limited rotary\u2011lift operations without relying solely on the Eilean\u2011class for air support. The deck is rated for heavy\u2011lift helicopters and includes night\u2011operations lighting and ship\u2011borne meteorological support. Rotary\u2011lift operations are primarily oriented toward logistics, medical evacuation, and small\u2011scale troop insertion rather than sustained amphibious assault by air. The aviation complex is integrated into the ship\u2019s logistics and cargo\u2011handling systems to support vertical replenishment from nearby supply ships.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"crew-and-accommodation\"><strong>Crew and accommodation<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship carries a complement of about 290 crew and 400 marines, for short term surge operations a total of 700 marines can be accomodated. Crew accommodation is arranged in several decks within the superstructure and hull, with berthing separate from marine accommodation. Marine berthing is located amidships and aft, with sufficient ventilation and sanitary facilities for extended deployments. A small medical bay is located amidships, separate from the engineering spaces, with treatment beds and basic operating facilities suitable for routine medical support and minor casualties. The ship also includes modular storage and bunks that can be reconfigured for humanitarian\u2011relief and disaster\u2011response missions, including temporary housing for displaced civilians if required. A command and control space is included for coordinating small\u2011scale amphibious operations and logistical support, but this is less extensive than the Eilean\u2011class command centre.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"armament-and-selfdefence\"><strong>Armament and self\u2011defence<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Cala\u2011class carries a light self\u2011defence armament suite consistent with its role as a regional\u2011scale amphibious platform. The ship is fitted with a 16\u2011cell vertical launching system for medium\u2011range surface\u2011to\u2011air missiles. This system provides short\u2011 to medium\u2011range air defence and can support limited anti\u2011aircraft\u2011threat interception. Close\u2011in defence is provided by two 30 mm close\u2011in weapon systems arranged to give 360\u2011degree coverage, supporting anti\u2011missile and anti\u2011small\u2011craft defence. The ship also carries two 30 mm gun systems, located amidships and aft, used for anti\u2011small\u2011craft fire. The armament configuration is designed to allow the ship to operate in contested environments when supported by dedicated air\u2011defence escorts, but not to conduct independent high\u2011intensity missile\u2011saturation engagements.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"sensors-and-electronic-warfare\"><strong>Sensors and electronic warfare<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is equipped with a primary volume\u2011search radar providing three\u2011dimensional air and surface surveillance with a range of approximately 120\u2013180 nautical miles. A separate multifunction radar operates in the X\u2011band, supporting horizon\u2011search, tracking, and fire\u2011control guidance for the vertical launcher, 30 mm CIWS, and 30 mm guns. A dedicated surface\u2011search and navigation radar is integrated into the ship\u2019s navigation and combat management system for harbour\u2011manoeuvring, coastal navigation, and littoral\u2011environment operations. The combat\u2011management arrangement is derived from a 9LV\u2011type architecture, adapted for coordinating amphibious landings, rotary\u2011lift operations, and sensor\u2011guided navigation. The electronic\u2011warfare suite includes an electronic support measures array, a directional electronic\u2011countermeasures system, and an identification\u2011friend\u2011or\u2011foe subsystem. Decoy launchers are fitted for missile\u2011defence and anti\u2011radar deception.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"operations-and-doctrine\"><strong>Operations and doctrine<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Cala\u2011class is designed to operate as a supporting element of amphibious task groups, providing regional\u2011scale amphibious capability that complements the larger Eilean\u2011class LHDs. The ship is capable of conducting over\u2011the\u2011horizon landings using a mix of landing craft and limited rotary\u2011lift operations while maintaining a modest armament load. The diesel\u2011electric propulsion, moderate top speed, and long range support a doctrine that prioritises persistent presence in archipelago\u2011type environments over short\u2011duration dash\u2011to\u2011station operations. The class also supports non\u2011combat roles such as disaster\u2011relief, evacuation, and support to civil authorities, with its large internal spaces, medical facilities, and logistics\u2011handling capability.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 2003 &#8211; present<\/li>\n\n\n\n<li>Displacement: 13&#8217;500 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 181 m\/27 m\/6,5 m<\/li>\n\n\n\n<li>Power: CODLAD 2 x MACO 16V-STDM-563 Diesel engines (8 MW each) with 16&#8217;000 kW combined, 20 kn<\/li>\n\n\n\n<li>Range: 8500 nm @ 18 kn<\/li>\n\n\n\n<li>Complement: 290 + 400 Marines (700 Marines surge capacity)<\/li>\n\n\n\n<li>Capacity: 3 LCAC + 4 LCVP + 30 Vehicles<\/li>\n\n\n\n<li>Aviation: Hangar for 4 Medium Lift Helicopters + deck for 2 \u00d7 Heavy Lift Helicopters<\/li>\n\n\n\n<li>Built: 2 (Cala na M\u00e0thar, Cala nan Gaisgeach)<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>2 x 30 mm\/55 md. 69\/05 CIWS<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>1 x 8-cell self-defence VLS (quad-pack LBT-21E)<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>2 x 30 mm\/60 md.60\/05S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>RESA-44 air and surface surveillance radar<\/td><td>&#8211;<\/td><\/tr><tr><td>RESA-42 air and surface search, tracking, and guidance radar<\/td><td>&#8211;<\/td><\/tr><tr><td>SUMA-37 Navigation radar<\/td><td>SUMA-43 Navigation radar<\/td><\/tr><tr><td>RSMT-22D fire control system<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>CTAI-42 ESM<\/td><td>&#8211;<\/td><\/tr><tr><td>CFAD-42 ECM Suite<\/td><td><\/td><\/tr><tr><td>ACNA-45 IFF<\/td><td>&#8211;<\/td><\/tr><tr><td>GTAM-48 decoy launchers<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/e\/e9\/HMS_Bulwark.jpg\"><img decoding=\"async\" width=\"300\" height=\"218\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-36-300x218.jpeg\" alt=\"\" class=\"wp-image-373 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-36-300x218.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-36.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/218;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Hmfcalum, CC BY-SA 3.0 <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/3.0\">https:\/\/creativecommons.org\/licenses\/by-sa\/3.0<\/a>, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Eilean-class <strong>Landing Helicopter Dock<\/strong>&nbsp;(LHD)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Eilean-class<\/strong> (Island) is a series of four multi-role amphibious assault ships operated by the Federation Navy. Commissioned between 2005 and 2010, the class was designed to succeed the <em>Sg\u00f9rr<\/em>-class LHD. Designed for amphibious assault, airmobile deployment, and regional logistics, the ship functions as a mobile platform for marine forces, rotary\u2011lift operations, and coordinated task\u2011group deployments across the Laywen archipelago.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<h5 class=\"wp-block-heading\" id=\"dimensions-and-hull\"><strong>Dimensions and hull<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The class is built to a displacement of approximately 14,500 tonnes standard, rising to about 19,000 tonnes at full load. The hull measures 197 metres in length, 30 metres in beam, and a maximum draft of 7.0 metres. This configuration allows operation in archipelago\u2011type waters and moderate\u2011depth approaches without requiring excessively deep\u2011water infrastructure. The hull form is a through\u2011deck amphibious ship with a stern floodable well deck, giving the vessel a characteristic LHD silhouette. The hull is constructed in steel, with a double\u2011bottom section amidships and a subdivided compartment layout designed to limit flooding and sustain operations after minor combat damage.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"propulsion-and-performance\"><strong>Propulsion and performance<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is powered by a diesel\u2011electric propulsion system. Four MACO 12V\u2011type high\u2011torque diesel engines, each rated at approximately 6&#8217;000 kW at 1200 revolutions per minute, drive electric generators that feed into a central electrical bus. Two electric propulsion motors drive two shafts with controllable\u2011pitch propellers, giving a maximum speed of 24 knots. The diesel\u2011electric arrangement provides continuous\u2011duty efficiency at cruising speeds, reduces mechanical vibration transmitted into the hull, and improves survivability through distributed power generation. At 16\u201318 knots, the ship has a range of 9&#8217;500 nautical miles, sufficient for long\u2011distance transits between island groups without refuelling. <\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"well-deck-and-surface-lift\"><strong>Well deck and surface lift<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Eilean\u2011class incorporates a large floodable well deck at the stern that can accommodate two air\u2011cushioned landing craft and five conventional LCVP\u2011style landing craft. A vehicle deck is located immediately forward of the well deck and above the lower machinery spaces. The vehicle deck provides space for approximately 1,200 tonnes of armored vehicles and support equipment, typically configured for 40 armored fighting vehicles. Vehicle stowage is arranged in modular bays to facilitate rapid embarkation and disembarkation during amphibious rehearsal and actual operations. The ship also has dedicated cargo holds for fuel, ammunition, and technical stores that support sustained amphibious operations without external replenishment for up to 7\u201310 days.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"aviation-facilities\"><strong>Aviation facilities<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship features a full\u2011through flight deck extending over the major portion of the length, with a starboard\u2011side superstructure that houses the bridge, air\u2011traffic control, and command spaces. The flight deck is coated with a heat\u2011resistant material to support medium\u2011lift rotary\u2011wing operations. The deck is rated for continuous rotary\u2011lift operations in day and night conditions, with provisions for night\u2011navigation lighting and ship\u2011borne meteorological support. The ship carries a total of 15 medium\u2011lift helicopters on a typical air\u2011group configuration. The deck is laid out with six designated helicopter landing spots. The aviation complex includes a maintenance and ordnance area, fueling facilities, and a small ordnance\u2011storage locker, permitting limited sustained rotary\u2011lift operations without shore support.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"crew-and-accommodation\"><strong>Crew and accommodation<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship carries a complement of 320 crew and 800 marines at full load. Crew accommodation is distributed in several decks within the superstructure and hull, with berthing separate from marine accommodation. Marine berthing is arranged in modular spaces forward of the vehicle deck and amidships, with sufficient ventilation and sanitary facilities for long\u2011duration deployments. There is a dedicated medical bay located amidships, separate from the engineering spaces, with operating tables, intensive\u2011care facilities, and ward beds sufficient for treating multiple casualties. The ship also includes storage spaces and modular bunks that can be reconfigured for disaster\u2011relief and humanitarian\u2011aid missions, including temporary housing for displaced civilians if required. There is a command and control centre for joint amphibious task\u2011force operations, equipped with communications suites, plotting tables, and multi\u2011source sensor feeds.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"armament-and-selfdefence\"><strong>Armament and self\u2011defence<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is fitted with a light self\u2011defence armament suite, consistent with its role as an amphibious assault platform rather than a heavy combatant. The primary air\u2011defence system is a 16\u2011cell self-defence cold launch vertical launching system for medium\u2011range surface\u2011to\u2011air missiles. Close\u2011in defence is provided by two 30 mm close\u2011in weapon systems arranged to give 360\u2011degree coverage, supporting anti\u2011missile and anti\u2011small\u2011craft defence. The ship also carries two 30 mm gun systems, located forward and amidships, used for anti\u2011small\u2011craft fire. The armament configuration is designed to allow the ship to operate in contested environments when supported by dedicated air\u2011defence escorts, but not to conduct independent high\u2011intensity missile\u2011saturation engagements.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"sensors-and-electronic-warfare\"><strong>Sensors and electronic warfare<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is equipped with a primary volume\u2011search radar operating in the S\u2011band, providing three\u2011dimensional air and surface surveillance with a range of approximately 150\u2013200 nautical miles. A separate multifunction radar in the X\u2011band supports horizon\u2011search, tracking, and fire\u2011control guidance for the vertical launcher and guns. A dedicated surface\u2011search and navigation radar is integrated into the combat system for harbour manoeuvring, coastal navigation, and littoral\u2011environment operations. The fire\u2011control and combat management arrangement is derived from a 9LV\u2011type combat\u2011management architecture, adapted to coordinate air\u2011plan management, amphibious assault sequencing, and sensor\u2011guided manoeuvring. The electronic\u2011warfare suite includes an electronic support measures array, a directional electronic\u2011countermeasures system, and an identification\u2011friend\u2011or\u2011foe subsystem. Several decoy launchers are fitted for missile\u2011defence and anti\u2011radar deception.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"operations-and-doctrine\"><strong>Operations and doctrine<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Eilean\u2011class is designed to operate as a core element of amphibious task groups, conducting over\u2011the\u2011horizon assaults using rotary\u2011lift and air\u2011cushioned landing craft while providing on\u2011board command and logistics support. The ship is capable of conducting long\u2011range deployments, anchoring offshore of contested coastlines, and launching repeated waves of landing craft and helicopters without frequent at\u2011sea replenishment. The diesel\u2011electric propulsion, moderate top speed, and long range support a doctrine that prioritises persistent presence in archipelago\u2011type environments over short\u2011duration dash\u2011to\u2011station operations. The ship is also usable in non\u2011combat roles such as disaster\u2011relief, evacuation, and support to civil authorities, with its large internal spaces, medical facilities, and logistics\u2011handling capability. The design reflects a continuum of development from the Sg\u00f9rr\u2011class LHDs, scaling up aviation and marine lift capacity while maintaining a modest armament load and regionally\u2011focused endurance profile.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 2007 &#8211; present<\/li>\n\n\n\n<li>Displacement: 14&#8217;300 t standard<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 197 m\/30 m\/7 m<\/li>\n\n\n\n<li>Power: CODLAD 4 x MACO 12V-STDM-563 Diesel engines (6 MW each) with 24&#8217;000 kW combined, 24 kn<\/li>\n\n\n\n<li>Range: 9500 nm @ 18 kn<\/li>\n\n\n\n<li>Complement: 320 + 800 Marines<\/li>\n\n\n\n<li>Capacity: 2 LCAC + 5 LCVP + 40 Vehicles<\/li>\n\n\n\n<li>Aviation: Hangar for 15 Medium Lift Helicopters + deck for 6 \u00d7 Medium Lift Helicopters<\/li>\n\n\n\n<li>Built: 4<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>2 x 30 mm\/55 md. 69\/05 CIWS<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>2 x 8-cell self-defence VLS (quad-pack LBT-21E)<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>2 x 30 mm\/60 md.60\/05S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>RESA-44 air and surface surveillance radar<\/td><td>&#8211;<\/td><\/tr><tr><td>RESA-42 air and surface search, tracking, and guidance radar<\/td><td>&#8211;<\/td><\/tr><tr><td>SUMA-37 Navigation radar<\/td><td>SUMA-43 Navigation radar<\/td><\/tr><tr><td>RSMT-22D fire control system<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>CTAI-42 ESM<\/td><td>&#8211;<\/td><\/tr><tr><td>CFAD-42 ECM Suite<\/td><td><\/td><\/tr><tr><td>ACNA-45 IFF<\/td><td>&#8211;<\/td><\/tr><tr><td>GTAM-48 decoy launchers<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/4\/4d\/ROKS_Dokdo_%28LPH_6111%29_-_Invincible_Spirit.jpg\"><img decoding=\"async\" width=\"300\" height=\"224\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-35-300x224.jpeg\" alt=\"\" class=\"wp-image-366 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-35-300x224.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-35.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/224;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Adam K. Thomas, U.S. Navy, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Auxiliary Ships<\/h3>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><strong><strong>Be\u00f2thalachd-class ARS (Repair &amp; Salvage Ship)<\/strong><\/strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The&nbsp;<strong>Be\u00f2thalachd-class<\/strong>&nbsp;(<em>Vitality<\/em>) repair and salvage ships entered service in 1985 to provide battle damage repair, towing, and diving support to surface combatants and auxiliaries. Two vessels were constructed as dedicated fleet repair platforms, filling the gap between L\u00f9th AFS stores and shore facilities.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Service: 1985 \u2013 present<\/li>\n\n\n\n<li>Displacement: 3&#8217;500 t full<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 79 m\/15 m\/4,2 m<\/li>\n\n\n\n<li>Power: 2 \u00d7 MACO 12V-TDM-352 (2,600 kW each), CODAD, 20 kn, 2 shafts<\/li>\n\n\n\n<li>Range: 9,000 nm @ 15 kn<\/li>\n\n\n\n<li>Complement: 100<\/li>\n\n\n\n<li>Armament: 2 x 30 mm md. 69 CIWS, 2 x 30 mm\/60 md.60S &#8220;Seabhag 30&#8221; revolver cannons<\/li>\n\n\n\n<li>Sensors: SUMA-37 Surface\/Navigation radar, RSMT-22C Fire control system, CTAI-32 ESM, ACNA-24 IFF, GTAM-39 decoy launcher<\/li>\n\n\n\n<li>Repair facilities: 1 \u00d7 40-tonne main crane; 1 \u00d7 15-tonne auxiliary crane; machine shop; foundry; welding bays; dry dock (150 t capacity); diving support<\/li>\n\n\n\n<li>Cargo: 450 t spares + 1,200 m\u00b3 fuel<\/li>\n\n\n\n<li>Aviation: Hangar + deck for 2 \u00d7 Medium Lift Helicopters<\/li>\n\n\n\n<li>Built: 2 ship<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-26.jpeg\"><img decoding=\"async\" width=\"300\" height=\"194\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-26-300x194.jpeg\" alt=\"\" class=\"wp-image-310 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-26-300x194.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-26.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/194;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">National Museum of the U.S. Navy, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><strong><strong>Ban-tighearna-class Tender<\/strong><\/strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The&nbsp;<strong>Ban-tighearna-class<\/strong>&nbsp;(<em>Matriarch<\/em>) tenders replaced the obsolete Sg\u00e0th-class in 1988, providing basing, fuel, and maintenance support for fast attack craft (FAC), mine countermeasures vessels, and corvettes at forward island stations. Six vessels were constructed for dispersed archipelago operations, entering service 1988-1990 ahead of Sg\u00e0th decommissioning.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Drawing from earlier designs, the <strong>Ban-tighearna-class<\/strong>-class featured extensive accommodations for squadron staff and configurable holds for FAC\/MCM support. Forward stations maintained 4 FACs operational continuously, with missile\/parts replenishment from Saorsa AORs.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Service: 1988 \u2013 present<\/li>\n\n\n\n<li>Displacement: 3&#8217;400 t full<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 93 m\/16 m\/4,5 m<\/li>\n\n\n\n<li>Power: 2 \u00d7 MACO MACO 12V-TDM-462 (6,600 kW each), CODAD, 20 kn, 2 shafts<\/li>\n\n\n\n<li>Range: 6,000 nm @ 15 kn<\/li>\n\n\n\n<li>Complement: 75 + 40 technicians + 190 berths<\/li>\n\n\n\n<li>Armament: 2 x 30 mm\/55 md. 81 CIWS, 2 x 30 mm\/60 md.60\/80S &#8220;Seabhag 30&#8221; revolver cannons, 1 x twin LBT-85 launchers (+12 on magazine)<\/li>\n\n\n\n<li>Sensors: SUMA-37 Surface\/Navigation radar, RSMT-22C Fire control system, CTAI-32 ESM, ACNA-24 IFF, GTAM-39 decoy launcher<\/li>\n\n\n\n<li>Facilities: Fuel: 1,200 m\u00b3 diesel\/400 m\u00b3 avgas; ammo storage (100 t); repair workshop; FAC berthing (4 craft); MCM battery charging<\/li>\n\n\n\n<li>Cargo: 400 t containerized stores; 2 \u00d7 25 t cranes<\/li>\n\n\n\n<li>Aviation: 1 Helipad<\/li>\n\n\n\n<li>Built: 6 ships (Ban-tighearna (The Lady \/ Matriarch), Glandair (The Purifier \/ Cleanser), Cagailt (The Hearth), Seun (The Charm \/ Amulet), Fasgadh (The Shelter), Moire (The Great Mother))<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/3\/3a\/WISCHE_0904.jpg\"><img decoding=\"async\" width=\"330\" height=\"220\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-27.jpeg\" alt=\"\" class=\"wp-image-311 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-27.jpeg 330w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-27-300x200.jpeg 300w\" data-sizes=\"(max-width: 330px) 100vw, 330px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 330px; --smush-placeholder-aspect-ratio: 330\/220;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Ein Dahmer, CC BY-SA 4.0 <a href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\">https:\/\/creativecommons.org\/licenses\/by-sa\/4.0<\/a>, via Wikimedia Commons<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><strong><strong>Sr\u00f9than-class replenishment ship<\/strong><\/strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Sr\u00f9than-class<\/strong> (<em>Streamlet<\/em>) is a series of six light replenishment vessels commissioned by the Federation Navy between 1993 and 1995. Designed as a logistical intermediary, the class functions as the &#8220;connective tissue&#8221; of the fleet, sustaining littoral combatants\u2014including corvettes, fast attack craft (FAC), and patrol vessels\u2014within shallow archipelagic environments. By operating in restricted waters inaccessible to the larger <em>Tobar<\/em>-class fleet oilers, the <em>Sr\u00f9than<\/em>-class provides a decentralized supply chain that supports both front-line tenders and isolated civilian communities.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<p class=\"wp-block-paragraph\">The primary mission of the <em>Sr\u00f9than<\/em>-class is the forward replenishment of littoral strike groups and the resupply of submarine and FAC tenders. This role reduces the logistical strain on strategic assets and ensures that small-ship flotillas can maintain high operational tempos without returning to major naval bases. Beyond military applications, the ships are tasked with humanitarian assistance and disaster relief (HADR), serving as a primary link to small-island communities during emergencies.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Designed for operation in shallow, archipelagic waters where deeper\u2011draft tankers cannot operate safely, the Sr\u00f9than\u2011class is optimized for multi\u2011product transfer and localized maintenance support. The ship features a&nbsp;modular, midships multi\u2011purpose deck&nbsp;served by a&nbsp;10\u2011tonne capacity knuckle\u2011boom crane, enabling it to carry ISO containers, spare engine modules for FACs, and other mission\u2011specific stores. This configuration supports both forward\u2011anchorage resupply and limited technical support for smaller hulls, including FAC and submarine tenders, thereby reducing the frequency with which the Tobar\u2011class AORs must enter confined or shallow anchorages.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The hull is constructed with an&nbsp;ice\u2011strengthened Category 1D rating, permitting year\u2011round operations in the colder, northern reaches. The ship carries&nbsp;marine and aviation fuel,&nbsp;fresh water,&nbsp;food,&nbsp;ammunition, and general logistical mat\u00e9riel necessary to sustain corvettes, FACs, patrol vessels, and the tenders that support them. A&nbsp;small medical station&nbsp;is included on board, capable of managing minor injuries with the ship\u2019s own personnel and providing a basic care platform for more serious cases when augmented by a visiting medical officer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Sr\u00f9than\u2011class is fitted with an&nbsp;<strong>aft\u2011located flight deck<\/strong>&nbsp;rated for medium\u2011lift helicopters, enabling limited vertical replenishment and the transfer of small\u2011scale cargo or personnel between the vessel and shore or nearby anchorages. The ship\u2019s role combines littoral\u2011renishment, tender support, and regional disaster\u2011relief, making it a flexible, low\u2011profile auxiliary that enhances the navy\u2019s ability to sustain dispersed, shore\u2011proximate operations in the archipelago.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Service: 1993 \u2013 present<\/li>\n\n\n\n<li>Displacement: 3&#8217;600 t full<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 100 m\/15 m\/4 m<\/li>\n\n\n\n<li>Power: 1 \u00d7 MACO 12V-STDM-563 6 MW, 18 kn, bow thruster<\/li>\n\n\n\n<li>Range: 4,000 nm @ 12 kn<\/li>\n\n\n\n<li>Complement: 40 + 40 technicians<\/li>\n\n\n\n<li>Armament: 2 x 30 mm\/60 md.60\/85 &#8220;Seabhag 30&#8221; twin revolver cannons, 1 x twin LBT-85 launchers (+12 on magazine)<\/li>\n\n\n\n<li>Sensors: SUMA-37 Surface\/Navigation radar, RSMT-22C Fire control system, CTAI-32 ESM, ACNA-24 IFF, GTAM-39 decoy launcher<\/li>\n\n\n\n<li>Facilities: Fuel: 700 m\u00b3 diesel\/60 m\u00b3 avgas; ammo storage (160 t); repair workshop<\/li>\n\n\n\n<li>Cargo: 28 places for ISO containers; 2 \u00d7 25 t cranes, 280 m\u00b3 fresh water<\/li>\n\n\n\n<li>Aviation: 1 Helipad<\/li>\n\n\n\n<li>Built: 6 ships<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/f\/f8\/German_auxiliary_repair_ship_Elbe_%28A_511%29.jpg\/1280px-German_auxiliary_repair_ship_Elbe_%28A_511%29.jpg\"><img decoding=\"async\" width=\"300\" height=\"215\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-41-300x215.jpeg\" alt=\"\" class=\"wp-image-397 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-41-300x215.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-41.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/215;\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-small-font-size wp-block-paragraph\">Mike Banzhaf, U.S. Navy, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Tobar<\/em>-class Fleet Replenishment Oiler (AOR)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Tobar-class<\/strong> (The Well) is a series of six naval logistic vessels commissioned between 2006 and 2015. Designed to replace the aging single-hulled tankers of the previous generation, the <em>Tobar<\/em>-class provides the Federation Navy with the capacity for simultaneous Replenishment at Sea (RAS) of fuel, potable water, and palletized solid stores.<\/p>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Description<\/summary>\n<h5 class=\"wp-block-heading\" id=\"dimensions-and-hull\"><strong>Dimensions and hull<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Each Tobar\u2011class ship has a full\u2011load displacement of approximately 24,000 tonnes. The hull measures about&nbsp;165 metres in length, 28 metres in beam, and a maximum draft of 6.5 metres, giving it the seakeeping and internal capacity required for mid\u2011 and long\u2011range support operations. The hull is a conventional merchant\u2011derived form with a bulbous bow, a double\u2011bottom fuel tank arrangement amidships, and an aft\u2011located superstructure. The ship is constructed of steel with a moderately compartmentalised layout, balancing maintenance simplicity against survivability requirements for a non\u2011combatant but critical auxiliary vessel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The ship also carries&nbsp;two rigid\u2011hulled inflatable boats (RHIBs)&nbsp;and&nbsp;two fast\u2011rescue\u2011craft, used for personnel transfer, light\u2011cargo operations, and at\u2011sea rescue.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"propulsion-and-performance\"><strong>Propulsion and performance<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The ship is powered by a&nbsp;combined diesel\u2011and\u2011diesel (CODAD)&nbsp;propulsion system. Two medium\u2011speed diesel engines drive a common gearbox arrangement that feeds two shafts with controllable\u2011pitch propellers, giving a&nbsp;maximum speed of 20 knots. The propulsion system is optimised for endurance, with a&nbsp;range in excess of 9,000 nautical miles at 16 knots, sufficient to support operations across Laywen\u2011related sea lanes without frequent refuelling. The ship carries a complement of&nbsp;<strong>about 125 crew<\/strong>, including both military and civilian\u2011style specialists, and is equipped for sustained periods at sea with provisions for extended underway replenishment operations.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"well-deck-and-surface-lift\"><strong>Cargo and replenishment capacity<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">The Tobar\u2011class has separate fuel and solid\u2011cargo divisions within its hull. The ship can carry&nbsp;approximately 11&#8217;000 m\u00b3 and aviation fuel&nbsp;in integral double\u2011hull tanks. In addition to fuel, the ship carries&nbsp;around 1,500\u20132,000 tonnes of ammunition and dry cargo, including spares, ordnance, and technical supplies used by frigates, destroyers, and amphibious vessels. Replenishment\u2011at\u2011sea equipment includes&nbsp;multiple abeam\u2011replenishment stations on both port and starboard sides, as well as&nbsp;stern\u2011replenishment rigs, allowing the ship to service more than one vessel simultaneously. The ship also supports&nbsp;vertical replenishment, with aviation fuel and cargo passed via helicopters operating from its aft deck. It also carries 800 m\u00b3 of potable water as well as a water cleaning facility and 500 m\u00b2 of refrigerated space for fresh produce.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\" id=\"aviation-facilities\"><strong>Aviation facilities<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">A permanent hangar and a large aft flight deck support one heavy-lift helicopter or two medium utility helicopters. The deck is rated for Level 1 Class 1 operations, meaning it can recover aircraft in heavy seas (Sea State 5), reflecting the ship&#8217;s role as a secondary search-and-rescue (SAR) hub for the archipelago.<\/p>\n<\/details>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 2006 &#8211; present<\/li>\n\n\n\n<li>Displacement: 24&#8217;000 t full load<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 165 m\/28 m\/7 m<\/li>\n\n\n\n<li>Power: CODAD 2 x MACO 08V-TDM-562 Diesel engines (7.6 MW each) with 15&#8217;200 kW combined, 20 kn, Twin Shafts + Bow &amp; Stern Thrusters<\/li>\n\n\n\n<li>Range: 9000 nm @ 16 kn<\/li>\n\n\n\n<li>Complement: 55<\/li>\n\n\n\n<li>Cargo: 11&#8217;000 m\u00b3 (diesel fuel, aviation fuel), 800 m\u00b3 (fresh water)<\/li>\n\n\n\n<li>Aviation: Hangar for 15 Medium Lift Helicopters + deck for 6 \u00d7 Medium Lift Helicopters<\/li>\n\n\n\n<li>Built: 6<\/li>\n<\/ul>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Armament<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>2 x 30 mm\/55 md. 69\/05 CIWS<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>2 x 30 mm\/60 md. 60\/05S &#8220;Seabhag 30&#8221; revolver cannons<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n\n\n\n<details class=\"wp-block-details is-layout-flow wp-block-details-is-layout-flow\"><summary>Sensors<\/summary>\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-fixed-layout\"><thead><tr><th>Initial<\/th><th>Modernised<\/th><\/tr><\/thead><tbody><tr><td>SUMA-37 Navigation radar<\/td><td>SUMA-43 Navigation radar<\/td><\/tr><tr><td>RSMT-22D fire control system<\/td><td><em>&#8211;<\/em><\/td><\/tr><tr><td>CTAI-42 ESM<\/td><td>&#8211;<\/td><\/tr><tr><td>CFAD-42 ECM Suite<\/td><td>&#8211;<\/td><\/tr><tr><td>ACNA-45 IFF<\/td><td>&#8211;<\/td><\/tr><tr><td>GTAM-48 decoy launchers<\/td><td>&#8211;<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/details>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/a\/a4\/Knm_muad.jpg\"><img decoding=\"async\" width=\"300\" height=\"169\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-39-300x169.jpeg\" alt=\"\" class=\"wp-image-386 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-39-300x169.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-39.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/169;\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Adam K. Thomas, U.S. Navy, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em>Sine<\/em>-class Hospital Ship<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Sine-class<\/strong> (The Kind One) is a class of two hospital ships commissioned between 2006 and 2009. They are equiped with 6 operating theatres, and can perform 40 major surgeries a day, in addition to X-ray, ultrasound, computerized tomography, hypothermia, hemodialysis and dental facilities.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<ul class=\"wp-block-list\">\n<li>In Service: 2006 &#8211; present<\/li>\n\n\n\n<li>Displacement: 18&#8217;000 t full load<\/li>\n\n\n\n<li>Length\/Beam\/Draft: 160 m\/27 m\/6,5 m<\/li>\n\n\n\n<li>Power: CODLAD 2 x MACO 08V-TDM-562 Diesel engines (7.6 MW each) with 15&#8217;200 kW combined, 18 kn, Electric Azimuth Pods<\/li>\n\n\n\n<li>Range: 10&#8217;000 nm @ 16 kn<\/li>\n\n\n\n<li>Complement: 280<\/li>\n\n\n\n<li>Facilities: 250 beds (60 ICU + 190 General)<\/li>\n\n\n\n<li>Sensors: SUMA-37 navigation radar<\/li>\n\n\n\n<li>Aviation: Hangar for 1 Medium Lift Helicopters + Flight Deck capable of handling two heavy-lift helicopters simultaneously for &#8220;Life-Flight&#8221; operations.<\/li>\n\n\n\n<li>Built: 6<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-image size-medium\"><a href=\"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/5\/50\/People%27s_Liberation_Army_%28Navy%29_ship_PLA%28N%29_Peace_Ark_%28T-AH_866%29_steams_in_close_formation_during_Rim_of_the_Pacific_%28RIMPAC%29_Exercise_2014.jpg\"><img decoding=\"async\" width=\"300\" height=\"140\" data-src=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-40-300x140.jpeg\" alt=\"\" class=\"wp-image-390 lazyload\" data-srcset=\"https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-40-300x140.jpeg 300w, https:\/\/laywenrania.uk\/blog\/wp-content\/uploads\/2026\/04\/image-40.jpeg 330w\" data-sizes=\"(max-width: 300px) 100vw, 300px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 300px; --smush-placeholder-aspect-ratio: 300\/140;\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">U.S. Navy photo by Mass Communication Specialist 1st Class Shannon Renfroe, Public domain, via Wikimedia Commons<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Further vessels<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>6 ocean-going tugs<\/li>\n\n\n\n<li>4 training ships<\/li>\n\n\n\n<li>4 survey ships<\/li>\n\n\n\n<li>2 intelligence ships<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Equipment Fast Attack Craft Iolaire-class Missile Boat Commissioned in 1985, the Iolaire (eagle) class represented a optimization of the &#8216;Heavy&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-226","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/pages\/226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/comments?post=226"}],"version-history":[{"count":32,"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/pages\/226\/revisions"}],"predecessor-version":[{"id":448,"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/pages\/226\/revisions\/448"}],"wp:attachment":[{"href":"https:\/\/laywenrania.uk\/blog\/wp-json\/wp\/v2\/media?parent=226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}