Keywords: US Navy 090618-N-9999X-001 The prototype of the Sikorsky YHSS-2 Sea King helicopter made its first flight on March 11, 1959.jpg en PATUXENT RIVER Md June 18 2008 The prototype of the Sikorsky YHSS-2 Sea King helicopter made its first flight on 11 March 1959 The helicopter was renamed the SH-3A in 1962 U S Navy photo/Released 1959 090618-N-9999X-001 Navy http //www navy mil/view_image asp id 69894 U S Navy photo File HSS-2 prototype NAN5-59 jpg PD-USGov-Military-Navy SH-3A Sea King 1959 at Naval Air Station Patuxent River Prototypes of aircraft |