NAS Keflavik- 01August 1978 F-4E 66-0304. 57 Fighter Interceptor Squadron (FIS). The crew were Capt. Gregory Harrison, pilot, and Capt. Dennis, WSO. The wings folded up smoothly and symmetrically just as they broke ground at approximately 170 knots. The wing fold locks were not in place. The jet had just come out of the paint barn, and they had painted over the locking pins. Aircraft was recovered safely after circling the field to reduce landing weight. A really FAST final at 230 knots plus!