 Delivery of the SBC-3s to the fleet began on 17 July 1937 when the first aircraft were issued to Scouting Squadron Five (VS-5) serving in USS "Yorktown" (CV-5) however, "Yorktown" was not commissioned until 30 September 1937 and the ship then began sea trials.On 10 December 1937, VS-5 went aboard "Yorktown" and served aboard her until replaced by Douglas SBD-3s Dauntlesses in 1940.By June 1938, three of the five scouting squadrons serving in aircraft carriers were equipped with SBC-3s while the other two were equipped with Vought SBU-1s.