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HMS Ocean

Amphibious assault ship

HMS Ocean

The HMS Ocean amphibious assault ship is a sole member of its class

 
 
Entered service 1998
Crew 284 + 206men
Sea endurance 12 800 km at 10 knots
Dimensions and displacement
Length 208 m
Beam 34.4 m
Draught 6.6 m
Displacement, standard ?
Displacement, full load 21 760 tons
Propulsion and speed
Speed 18 knots
Diesel engines 2 x 23 900 hp
Cargo
Troops 480 marines
Troops (surge capacity) 800 marines
Vehicles 40 x light vehicles
Cargo ?
Landing craft
Landing craft 4 x LVCP or 2 x Griffon hovercraft
Airwing
Helicopters 12 x EH.101 Merlina and 6 x WAH-64D
Armament
Artillery 4 x Oerlikon twin 30-mm guns and 3 x 20-mm Phalanx CIWS

 

   The HMS Ocean is an amphibious assault ship, commissioned in 1998. This vessel supports Royal Navy amphibious landing operations. It is a sole member of its class. A sister ship was planned, but these plans were abandoned before any order was placed.

   Hull of the HMS Ocean is based on Invincible class design, with a modified superstructure. It was designed to meet specific needs of amphibious operations.

   The HMS Ocean has complement of 284 officers and crew. Fleet air crew consists of 206 men. Typical troop capacity is 480 marines, however for a short periods of time this ship can accommodate up to 800 marines. The HMS Ocean can carry six light guns, 40 light vehicles and 34 trailers. Ship carries and uses four Lading Craft Vehicle Personnel (LCVP) Mk.5 or two Griffon hovercraft to deliver troops and equipment ashore. It is worth mentioning that the HMS Ocean is not designed to transport and land main battle tanks.

   The ship has a large flight deck (170 x 33 m) with six landing and six parking spots for helicopters. There is also a hangar with two aircraft elevators. Typically air wing consists of 12 medium support helicopters (EH.101 Merlin, CH-47 Chinook, Westland Commando) and 6 attack helicopters (Lynx AH.7, WAH-64D). The HMS Ocean can transport up to 15 Harrier II aircraft in the ferry role, however it is unable to operate as an aircraft carrier.

   The only weapons of the HMS Ocean are four Oerlikon twin 30-mm guns and three 20-mm Phalanx close-in weapon systems. Vessel is capable of limited anti-submarine warfare activities.

   Vessel is propelled by two Crossley Pielstick diesel engines, rated at 23 900 hp. Power is delivered by two independent shafts. It is also fitted with a single bow thruster. Ship has a cruising range of 8 000 miles (12 800 km) at 10 knots.

   The HMS Ocean has a planned 20 year service life and is currently scheduled to be retired in 2018.

 

Name Laid down Launched Commissioned Status
HMS Ocean (L12) 1994 1995 1998

active, in service

 

 

Video of the HMS Ocean amphibious assault ship

 

 
HMS Ocean

HMS Ocean

HMS Ocean

HMS Ocean

HMS Ocean

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