HMS Ocean Crest

HMS Ocean (L12)

'Britain’s biggest warship', the helicopter carrier and assault ship HMS Ocean (L12) is the Flagship of the Royal Navy.

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In her role as a helicopter carrier and amphibious assault ship, Ocean is designed to deliver troops by helicopter or by landing craft – the ship has six helicopters and carries four Mk5 landing craft vehicle and personnel (LCVP).

in 2015 HMS Ocean completed fitting new communications and IT systems which now allows the ship to host a staff, headed by a Rear Admiral, commanding UK and NATO Task Groups.

As well as the ship’s role as the Royal Navy’s Flagship, HMS Ocean was the lead ship for the Combined Task Force 50 (CTF 50).

CTF 50 is a multi-national task force maintaining the free flow of trade, freedom of navigation for shipping and regional security in the Middle East, an area around 2.5m square miles.

Predominantly a US Task Force the Royal Navy took command of this group for the first time with HMS Ocean as the Flagship of the force.

HMS Ocean set out at the end of August as part of a NATO Task Group to the Mediterranean but has now been diverted to the Caribbean to help in the aftermath of Hurricane Irma.



On Deployment

This unit is currently on deployment find out how that might affect you.

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HMS Ocean’s fittest run charity race


HMS Ocean (L12) Latest News

Merlin crews help save pensionerq

Merlin crews help save pensioner's life after hurricane knocks-out hospital


UK Flagship rescues hurricane-hit Britons from Dominica

See all news for HMS Ocean (L12)

Current operation Operation Ruman

Operation Ruman is the UK's military response to providing vital humanitarian aid and supplies to the Caribbean islands devastated by Hurricane Irma. The specialist humanitarian and disaster relief team on RFA Mounts Bay and her Wildcat helicopter are providing assistance to badly affected areas. Royal Marines from 40 Commando are helping to distribute aid and support local police. HMS Ocean has been diverted from the Mediterranean and is carrying a significant amount of aid and equipment.

  • Operation Ruman

    The UK is providing military support in order to supply humanitarian relief to the Caribbean Islands left devastated by Hurricane Irma.

  • Operation Sophia

    Operation Sophia is the EU naval operation against human smugglers and the movement of illegal arms in the Mediterranean. Ships will be able to board, search, seize and divert vessels suspected of being used for human or illegal arms smuggling or trafficking on the high seas, in line with international law.

Providing humanitarian assistance

When natural or man-made disasters occur, a country’s infrastructure and resources can be crippled. With loss of electricity, shortage of food and water supplies, and human lives at risk – responding to such life-threatening scenarios is central to the Royal Navy’s ethos. Because we have the skills, equipment and know-how to go anywhere, regardless of potential damage to local infrastructure.

Location Caribbean

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Unit History

The First Ocean1761

The first Ocean began the strong links with the West Country in 1770 as Flagship to Plymouth. Ocean saw her first real action against the French in 1778 under the lead of HMS Victory.

Battle Honours1781

Ushant 1781

The Second Ocean1805

Ocean’s next incarnation was a second-rate 98-gun warship, she spent the bulk of her service in the Mediterranean.
She was converted into a depot ship in 1841 and broken up in 1875.

The Third Ocean1867

The next was an ironclad of 50 guns. She holds the record for the longest days under sail by any British ironclad:  243 miles to the Far East. She was Flagship on the China Station from 1867.

The Fourth Ocean1898

The fourth Ocean earned a reputation as an unlucky ship, suffering various mishaps during build. Ocean served on the China Station during which time she was hit by a typhoon.

Battle Honours1915

Dardanelles 1915
Suez Canal 1915

The Fourth Ocean1915

In March 1915, as she attempted to rescue the mine-struck HMS Irresistible,  Ocean hit a mine – flooding and under fire, she was abandoned and sank that evening.

The Fifth Ocean1945

The fifth HMS Ocean  cemented her links with naval aviation. The Colossus-class aircraft carrier had a brief but active service career after commissioning in July 1945. 

Battle Honours1952

Korea 1952-53

The Sixth HMS Ocean1998

Commissioned in September 1998 in Devonport, HMS Ocean is at the heart of the Navy’s amphibious fleet. Until the arrival of the Queen Elizabeth class carriers, she is the largest UK warship.

Battle Honours2003

Al Faw 2003

Operation Unified Protector2011

As Libyan rebels fought Gaddafi forces, HMS Ocean launched Britain’s first seaborne Apache raid, destroying military vehicles, installations and communications equipment.

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Commanding Officer Robert Pedre

Rank: Captain

Captain Robert Pedre was selected for Royal Navy university sponsorship in 1993. He assumed Command of HMS Ocean in August 2016.

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HMS Ocean weighs a 22,000 tonnes


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