During the Korean War, Lt. j.g. John Koelsch ... After training in the new Sikorsky HO3S-1 helicopter, he was assigned in August 1950 to naval utility squadron UH-1 at Naval Air Station Miramar, ...

The ‘Black Hawk’ helicopter is one of the most storied in US military history and it has been in active use since 1979. The prototype was submitted by Sikorsky Aircraft in 1972 and was ...

After training in the new Sikorsky HO3S-1 helicopter ... toward his fellow prisoners of war. Koelsch was noted as uncooperative while under North Korean interrogation, even while his health ...