Douglas TBD-1 torpedo planes, of Torpedo Squadron Six (VT-6), from USS Enterprise (CV-6).
In flight, circa 1939. Plane closest to the camera is Bu. 0318.
Note how stripes painted on wings assist pilots in maintaining three-plane "V" formation.
[Source: Collection of Vice Admiral George C. Dyer, USN (Retired)/U.S. Naval Historical Center]