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Amphibious assault ships13 July 2006-presentProfile in progress
Landing ship dock
Bay-class landing ship is a landing ship dock. It was built by Swan Hunter and BAE Systems Naval Ships. Reported operators include Royal Fleet Auxiliary Royal Australian Navy.
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Swan Hunter and BAE Systems Naval Ships
Royal Fleet Auxiliary Royal Australian Navy
Round Table class
ATS-class amphibious warfare ship (planned)
£ 596 million for 4 units £ 149 million per unit BAE ships cost £ 127 million per unit to build
28 January 2002-26 November 2007
13 July 2006-present
4
4
Landing ship dock
16,160 tonnes (15,900 long tons )
579.4 ft (176.6 m)
86.6 ft (26.4 m)
19 ft (5.8 m)
2 × Wärtsilä 8L26 generators, 6,000 hp (4.5 MW) 2 × Wärtsilä 12V26 generators, 9,000 hp (6.7 MW) 2 × azimuthing thrusters 1 × bow thruster
18 knots (33 km/h; 21 mph)
8,000 nmi (15,000 km; 9,200 mi) at 15 kn (28 km/h; 17 mph)
1 × LCU or 2 × LCVP in well deck 2 × Mexeflote powered rafts
1,150 linear metres of vehicles (up to 24 Challenger 2 tanks or 150 light trucks) Cargo capacity of 200 tons ammunition or 24 TEU containers
356 (standard), 700 (overload)
70 (RFA, core only), 158 (RAN)
Fitted for: 2 × DS30B Mk 1 30 mm guns 2 × Phalanx CIWS 4 × 7.62mm Mk44 Miniguns (may be replaced by Browning .50 caliber heavy machine guns as of 2023) 6 × 7.62mm L7 GPMG Individual outfit varies across class
Flight deck for helicopters up to Chinook -size; temporary hangar can be fitted
Derivative of the Enforcer ship design
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Bay-class landing ship equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
AustraliaNavy exact named Choules (ex-UK Bay) (capacity 2 med hel; 32 MBT; 350 troops) component holdings; active, operational-reserve and training equipment excluding equipment in store, except explicit status exclusions stated below. November 2025 IISS assessment. Named service only, not a national total or combat-readiness measure. Source armament/capacity counts are excluded. The single named Choules is the own explicitly renamed Largs Bay vessel, not a generic Bay patrol vessel. Carried helicopter, tank and troop capacities are excluded.
United KingdomRoyal Fleet Auxiliary exact named Bay component holdings; active, operational-reserve and training equipment excluding equipment in store, except explicit status exclusions stated below. November 2025 IISS assessment. Named service only, not a national total or combat-readiness measure. Source armament/capacity counts are excluded. Two leading RFA Bay landing ships only; the additional one non-operational Bay and carried LCU/LCVP/tank/troop capacities are excluded.