The squadron was re-formed as 402 (Fighter Bomber) Squadron on 15 April 1946, North American Harvard Mk. II trainers initially in preparation for a transition to a new role. For two years, parading two nights each week and on weekends, in addition to ground training on a variety of subjects, including lectures on jet aircraft and engines, 402 carried out air training on Harvards. For a short period, the de Havilland Mosquito was considered as the squadron's new aircraft, but eventually 402 converted to a fighter role on 1 March 1947, equipped with de Havilland Vampire F.3s. With the arrival of the Vampire, in addition to interception and tactical training exercises, 402 Squadron took part in many air shows. On 18 September 1950, the title "City of Winnipeg" was added to the squadron name.