The Royal Air Force (or RAF) was a branch of Great Britain's military.
The Royal Air Force saw much action in World War II, specifically in the London Blitz, when it was engaged in protecting Britain from Luftwaffe attacks. In 1940, an amnesiac Eighth Doctor tried to join the RAF, but was turned down when he couldn't prove he was a British subject. (PROSE: The Turing Test) In 1941, when the Progenitor Daleks used a beacon on their ship to activate the lights in London, leaving it vulnerable to German attack, four RAF pilots were sent in Spitfires enhanced with Dalek technology to destroy the beacon. All but one of the four Spitfires were destroyed. However, the last one destroyed the beacon when the Eleventh Doctor disabled the Daleks' shields. As the Spitfire prepared to destroy the saucer, the Doctor ordered the pilot to return to London as the Daleks were threatening to destroy Earth. (TV: Victory of the Daleks) In the same year, the rogue Time Agent Jack Harkness was disguised as a member of the RAF in London. (TV: The Empty Child)
In July 1966, at the request of the Commandant of Gatwick Airport, the RAF had one of their planes sent up to follow a Chameleon Tours plane. The Chameleons realised they were being followed and destroyed the RAF plane, killing the pilot. (TV: The Faceless Ones)
UNIT had planned for the RAF to bomb a coach being used by the Autons. However, Sergeant John Benton called off the attack at the last moment after the Master took the Third Doctor and Jo Grant hostage and brought them to the coach. (TV: Terror of the Autons)
UNIT had RAF fighter Red Zero-Four drop test canisters over the top of the heat barrier surrounding Devil's End, and estimated from the results — the last canister exploding at forty-five thousand feet — that the barrier was "approximately one mile high at apogee". (TV: The Dæmons)