 The first Skyfox converted was an ex-Canadian Forces Canadair CT-133 Silver Star (the Canadian license-built variant of the T-33) which was formerly a Silver Star 3AT (Armament Trainer).This particular aircraft, produced in 1958, had construction number T.33–160 and serial number RCAF21160.It was struck off charge on 10 November 1970 and was sold through Crown Assets Disposal Corporation to Leroy Penhall/Fighter Imports in 1973.