Spitfire

A Supermarine Spitfire was a type of aeroplane used by the British during World War II.

History
Winston Churchill sent three Spitfires into space to fight the Dalek ship. The Spitfires were outfitted for space with a gravity bubble and were armed with laser weapons, based on technology created by Dr. Edwin Bracewell. Their mission was to destroy a beacon on the Dalek ship which illuminated London, leaving it vulnerable to German attack. Two Spitfires were destroyed but the last one, "Danny Boy", succeeded. After he had completed his primary mission, the Eleventh Doctor ordered him to destroy the Dalek ship. However, the Doctor countermanded these orders when the Daleks threatened to destroy the Earth. "Danny Boy" then returned to Earth. (DW: Victory of the Daleks) Though this advanced technology was to be dismantled to avoid altering history, it was used again when the Doctor summoned "Danny Boy" to Demon's Run, where he destroyed the facility's communications array, then returned to his own time. (DW: A Good Man Goes to War)

Behind the scenes

 * The Spitfires in Victory of the Daleks and A Good Man Goes to War were presumbably the Mk I variants as the Mk II was not produced until 1942.