Mounts Bay launch day, 9th April 2004
Some details of Mounts Bay and her three sister ships:
Displacement: 16,190 tonnes deep displacement.
Dimensions: 176.6 m length overall; 26.4 m beam; 5.1 m design draft.
Speed: 18 knots
Range: 8,000 nautical miles (15,000 km) at 15 knots.
Engines: Diesel-Electric propulsion systems with 2 azimuthing thrusters and bow thruster. 4 main diesel generating sets - 2 x Wärtsilä 8L26 engines (2,240 kW each), 2 x Wärtsilä 12V26 engines (3,360 kW each). 1 auxiliary Wärtsilä standby diesel generating set. Dynamic positioning system.
Armament: None, but fitted to receive military weapons and self defence systems, including Phalanx CIWS.
Complement: 59 crew
Load: 356 troops; 1,200 Linear metres of vehicles (e.g. 32 Challenger 2 tanks or 150 light trucks); 12 × 40 TEU or 24 × 24 TEU containers, 2 Landing Craft Vehicle and Personnel (LCVP) Mk.5 and 1 Landing Craft Utility Mk 10; two Mexeflote powered rafts.
Aircraft: Twin spot flight deck with limited facilities to transport and operate Merlin, CH-47 Chinook and V-22 Osprey. Initially, Mounts Bay and Largs Bay will operate a one spot flight deck, enabling them to carry two Chinooks as deck cargo whilst operating a third from the flight deck.