The Fleet Air Arm (FAA) is the branch of the British Royal Navy responsible for the operation of naval aircraft. The Fleet Air Arm currently operates the AgustaWestland Merlin, Westland Sea King and Westland Lynx helicopters. Helicopters such as the Lynx and Westland Wasp have been deployed on smaller vessels since 1964, taking over the roles once performed by biplanes such as the Fairey Swordfish.

The Fleet Air Arm was formed in 1924 as organizational unit of the Royal Air Force which was then operating the aircraft embarked on RN ships – the Royal Naval Aviation Service having been merged with the British Army's Royal Flying Corps in 1918 – and did not come under the direct control of the Admiralty until mid-1939. During the Second World War, the Fleet Air Arm operated both aircraft on ships and land-based aircraft that defended the Royal Navy's shore establishments and facilities.

British naval flying started in 1909, with the construction of an airship for naval duties. In 1911 the Royal Navy graduated its first aeroplane pilots at the Royal Aero Club flying ground at Eastchurch, Isle of Sheppey under the tutelage of pioneer aviator George Bertram Cockburn, but in May 1912 naval and army aviation were combined to become the Royal Flying Corps (RFC). The Naval Wing of the RFC lasted until July 1914 when the Royal Navy reformed its air branch, under the Air Department of the Admiralty^{[citation needed]}, naming it the Royal Naval Air Service (RNAS).