River

The River-class of offshore patrol vessels has been designed as the replacement for the Island-class built and commissioned by the Royal Navy in the late 1970s. The propulsion system of these vessels consists of two diesel engines developing a top speed of 16.5 knots. The main purpose is fishery protection. These 90-meter ships are armed with a 20mm cannon. The Royal Navy commissioned three vessels in 2002 and 2003. In April 2007, Trinidad and Tobago ordered three vessels from VT Shipbuilding under a £150 million contract. In June 2009, Thailand ordered one 90-meter offshore patrol vessel based on the River-class design. The ship is being built in Thailand by Bangkok Dock with the keel laying ceremony held in late August 2010. The ship design has been modified to include combat systems utilized by the Royal Thai Navy. The Royal Navy ordered three additional vessels in November 2013 as replacement for the three smaller River class.

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