Add Yahoo as a preferred source to see more of our stories on Google. Lt. John Kelvin Koelsch (Navy) First used by the 1st Air Commando in World War II, the Sikorsky R-4 often fell short of its role ...

Since the war, the pair of old friends had traded in the jungles of Vietnam for Bud Field Aviation in Hayward where the chopper makes its home in the corner of a vast hangar filled with private planes ...

Some San Antonio residents were surprised this week to see a formation of CH-47 Chinook helicopters flying over their homes. The twin-engine, twin-rotor choppers rattled windows and nerves as they ...

First used by the 1st Air Commando in World War II, the Sikorsky R-4 often fell short of its role in rescuing airmen downed in the mountains and rainforests of the China-Burma-India front but as the ...