 By 26 June 1939, VS-2 was fully equipped with 21 aircraft.This was the only aircraft carrier that flew the SBC-4 and they were replaced by Douglas SBD-2 and -3 Dauntlesses in 1941.Because of the expanding aviation training program, the majority of SBC-4s, and other training aircraft, were assigned to Naval Reserve Air Bases (NRABs) to allow reserve Navy and Marine airmen assigned to reserve scouting squadrons (VS and VMS) and maintain their proficiency.