As its history was very much connected to British requirements, it is no surprise that the Mustang was used extensively by the Royal Air Force during WWII, from the early Allison powered Mustang I, to the Dallas produced, Packard Merlin powered IVa. The final victory for a WWII RAF Mustang belonged to Norwegian ace Werner Christie, who was flying his personal machine KH790. Following the conclusion of a successful bomber escort mission over Germany, Christie led his Mustangs in search of Luftwaffe fighters. Flying above Finow airfield, he noticed a flight of Fw 190s and immediately dived to attack. His first burst of fire caught the wing of an unsuspecting Focke Wulf, blowing half of the wing off and sending the fighter spiralling into the ground. This would be Christie’s eleventh and final victory of the war.