s-51-7 Published on July 2, 2014 in 3 July 1951: Medal of Honor, Lieutenant (j.g.) John Kelvin Koelsch, United States NavyFull resolution (720 × 469) ← Previous Next → A U.S. Navy Sikorsky HO3S-1, possibly Bu. No. 122715, rescues a downed flyer from Wonson Harbor, 1951. (Sikorsky Historical Archives)