When was the aircraft that The Silver Falcons fly introduced?
Silver Falcons: The Silver Falcons is the aerobatic display team of the South African Air Force. Silver Falcons:  Based at Air Force Base Langebaanweg near Cape Town, the Silver Falcons fly the Pilatus PC-7 Mk II, the basic trainer of the SA Air Force in a 5-ship routine. Pilatus PC-7:  Since the aircraft's introduction in 1978, close to 500 have been sold, with the majority still in service.
1978