773 Naval Air Squadron (773 NAS) was a

Naval Air Squadron A naval air squadron (NAS) is the title of naval aviation squadrons in some countries. Poland The Polish ''Morski Dywizjon Lotniczy'' #Naval Air Squadron# was formed in 1920 with two ''Escadrille''s# United Kingdom The squadrons of the Fleet Ai ...

of the Royal Navy's

Fleet Air Arm The Fleet Air Arm (FAA) is one of the five fighting arms of the Royal Navy and is responsible for the delivery of naval air power both from land and at sea. The Fleet Air Arm operates the F-35 Lightning II for maritime strike, the AW159 Wil ...

. As the waters around the

Imperial fortress Imperial fortress was the designation given in the British Empire to four colonies that were located in strategic positions from each of which Royal Navy squadrons could control the surrounding regions and, between them, much of the planet. His ...

colony In modern parlance, a colony is a territory subject to a form of foreign rule. Though dominated by the foreign colonizers, colonies remain separate from the administration of the original country of the colonizers, the ''metropole, metropolit ...

Bermuda ) , anthem = "God Save the King" , song_type = National song , song = " Hail to Bermuda" , image_map = , map_caption = , image_map2 = , mapsize2 = , map_caption2 = , subdivision_type = Sovereign state , subdivision_name = , e ...

(the main base and Royal Naval Dockyard of the

America and West Indies Station The North America and West Indies Station was a formation or command of the United Kingdom's Royal Navy stationed in North American waters from 1745 to 1956. The North American Station was separate from the Jamaica Station until 1830 when the t ...

) became a working-up area for US Navy and Royal Canadian Navy vessels, as well as for lend-lease ex-US Navy vessels of the Royal Navy, preparing to join the

Battle of the Atlantic The Battle of the Atlantic, the longest continuous military campaign in World War II, ran from 1939 to the defeat of Nazi Germany in 1945, covering a major part of the naval history of World War II. At its core was the Allied naval blockade ...

, Fleet Air Arm target tugs were based at

Royal Naval Air Station Bermuda RNAS Bermuda (the personnel of which, as with all members of the America and West Indies Station shore establishment in the Imperial fortress colony of Bermuda at the time, were part of the strength of the stone frigate HMS ''Malabar'') was a R ...

to assist in training anti-aircraft gunners afloat or ashore. 773 Fleet Requirements Unit was formed at Bermuda on the 3 June 1940, equipped with

Blackburn Roc The Blackburn Roc (company designation B-25) was a naval fighter aircraft designed and produced by the British aviation company Blackburn Aircraft. It took its name from the mythical bird of the tales of the Arabian Nights, the Roc. It was ope ...

target tugs. These were normally meant to operate from carrier decks, and had retractable undercarriage. To operate from RNAS Bermuda, which was only able to handle flyingboats and floatplanes, they were fitted with floats. They towed targets for anti-aircraft gunnery practice by Allied vessels working-up at Bermuda, as well as by a United States Navy anti-aircraft gunnery training centre operating on shore at

Warwick Parish Warwick Parish is one of the nine parishes of Bermuda. It is named after Robert Rich, 2nd Earl of Warwick (1587-1658). It is located in the central south of the island chain, occupying part of the main island to the southeast of the Great Soun ...

for the duration of the war. When the United States Army's Kindley Field (built under a 99-year free lease from the British Government on the understanding that it would be used jointly by the Royal Air Force establishment in Bermuda and Fleet Air Arm) became operational in 1943, the floats were removed from the Rocs, which thenceforth operated from the British end of the airfield as landplanes, being the first aircraft based there. 773 Fleet Requirements Unit disbanded on 25 April 1944.

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* 700 series Fleet Air Arm squadrons Military units and formations established in 1940 Military units and formations of the Royal Navy in World War II {{UK-navy-stub