A Douglas SBD-3 Dauntless scout bomber warming up on USS Yorktown, in the late morning of 4 June 1942. It is Number 17 of Scouting Squadron Five (the temporarily redesignated Bombing Squadron Five), piloted by Ensign Leif Larsen, but was apparently not one of ten VS-5 planes launched on a scouting mission shortly before noon on 4 June. Another of the squadron's SBDs succeeded in locating Hiryu, the only Japanese aircraft carrier of the Midway striking force that was still operational. The next plane, at right, is VS-5's Number 4, which did fly the scouting mission, piloted by Lieutenant John Nielsen. Official U.S. Navy Photograph, now in the collections of the National Archives.