River-class patrol vessel
HMS Clyde Leaving Portsmouth in 2007
|Builders:||Vosper Thornycroft (now BAE Systems Surface Ships)|
|Operators:|| Royal Navy
Royal Thai Navy
|Preceded by:||Castle class|
|In commission:||June 2003|
|Type:||Offshore Patrol Vessel|
81.5 metres (Clyde)
4.1 metres (Clyde)
|Installed power:||4,125 kW (5,532 hp) at 1,000 rpm|
|Range:||7,800 nautical miles (14,400 km) at 12 knots (22 km/h)|
|Boats & landing
|Complement:||30 (accommodation for up to 50)|
The River class is a class of offshore patrol vessels built primarily for the United Kingdom's Royal Navy. A total of five were built: Four for the Royal Navy replacing the seven ships of the Island class and the two Castle class patrol vessels. While a fifth modified River class (HTMS Krabi) was built for the Royal Thai Navy.
In Royal Navy service the River class are primarily used with the Fishery Protection Squadron and EEZ patrol. The fourth Royal Navy vessel (HMS Clyde (P257)) features several modifications allowing her to undertake duties in the South Atlantic and the Falkland Islands.
The ships are significantly larger than the Island-class vessels and have a large open deck aft allowing them to be fitted with equipment for a specific role, which can include fire-fighting, disaster relief and anti-pollution work. For this purpose, a 25 tonne capacity crane is fitted. In addition, the deck is strong enough for the transport of various tracked and wheeled light vehicles, or an LCVP.
A modified fourth vessel for the Royal Navy, HMS Clyde, was constructed at Portsmouth Dockyard and replaced the two vessels of the Castle class for duties in the Falkland Islands. This ship displaces 1,850 tonnes and has a 30mm gun, as well as a deck strengthened for aircraft operations.
Initially the three ships were not owned by the Royal Navy. They were constructed under an arrangement with the shipbuilder, Vosper Thornycroft (VT), under which the Royal Navy leased the vessels from the shipbuilder for a period of ten years. VT were responsible for all maintenance and support for the ships during the charter period. At the end of this, the Navy could then either return the ships, renew the lease or purchase them outright. In September 2012, it was announced by the Defence Secretary Philip Hammond that the Ministry of Defence had purchased the vessels for £39 million.
|Date||Running cost||What is included||Citation|
|2009-10||£5 million||"The average running cost per class of River Class is £20 million... These figures, based on the expenditure incurred by the Ministry of Defence in 2009-10, include maintenance, safety certification, military upgrades, manpower, inventory, satellite communication, fuel costs and depreciation."|||
Three vessels of the Amazonas-class based on the River class were built by BAE in the United Kingdom. They were originally intended to be exported for use by the Trinidad and Tobago Defence Force, however the Government of the Republic of Trinidad and Tobago cancelled the order in September 2010. In December 2011 it was reported that the Brazilian Navy were interested in buying the vessels, and possibly up to five additional vessels of the same design. The sale, for £133 million (compared to an original £150m), was then confirmed on 2 January 2012.
On 6 November 2013 it was announced that the Royal Navy had signed an Agreement in Principle to build three new OPVs at a fixed price of £348m including spares and support. The new ships will be based on the River class upgraded with a Merlin-capable flightdeck and will be built at BAE's Clyde shipyards to fill a gap in BAE's order book. They will enter service in 2017 and 2018, most likely replacing HM Ships Tyne, Severn and Mersey rather than working alongside them, but the final decision will be made in the 2015 SDSR.
Ships in the class
|Royal Navy||Tyne||P281||VT Shipbuilding, Southampton||27 April 2002||4 July 2003||In active service|
|Severn||P282||VT Shipbuilding, Southampton||4 December 2002||31 July 2003||In active service|
|Mersey||P283||VT Shipbuilding, Southampton||25 June 2003||28 November 2003||In active service|
|Clyde||P257||VT Shipbuilding, Portsmouth||14 June 2006||30 January 2007||In active service|
|Royal Thai Navy||Krabi||551||Bangkok Dock||3 December 2011||26 August 2013||In active service|
- BAE Systems Offshore Patrol Vessels, baesystems.com, Retried 8 June 2014
- Royal Navy HMS Clyde, royalnavy.mod.uk, Retrieved 8 June 2014. Quote - "As part of her deterrence role she also regularly visits other British Overseas Territories in the area such as South Georgia and the South Sandwich Islands. At just over 2,000 tonnes displacement, she may not be the biggest ship in the Navy, but this is certainly made up for in capability."
- "MoD buys £39m patrol ships from BAE". Press Association. 13 September 2012. Retrieved 13 September 2012.
- Hansard 24 November 2010 Written Answers.
- "Brazil could buy the 3 BAE System's OPV that were canceled by Trinidad and Tobago". Retrieved 2011-12-14.
- "BAE Systems sells patrol vessels to Brazil". BBC News. 2012-01-02.
- "Daily Hansard - Written Answers Column 561W". UK Parliament. 12 November 2013.
- "MOD plans to commission 3 new ocean-going offshore patrol vessels for the Royal Navy.". MOD. 6 November 2013. Retrieved 6 November 2013.
- Royal Navy - Patrol Boats - River Class (royalnavy.mod.uk)
- Naval Technology: River class project page