Word: hh
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Dates: during 1960-1969
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...bullet or ruptures during a crash. At the Air Force demonstration, a bullet fired into a fuel-and-foam-filled tank produced only a slight glow as fuel vapor escaping from the pressurized tank ignited outside. Foam has been successfully used for nine months in the tanks of HH-3E helicopters and other aircraft operating in Viet Nam, the Air Force disclosed, and the Federal Aviation Administration is now investigating the substance for possible use in commercial aircraft...
...task force, often dedicated to finding and retrieving just one man. High overhead circles the "Crown," a C-130 command plane that coordinates the rescue. Then come four A-l fighters to bomb and strafe any North Vietnamese on the ground around the pilot. Two helicopters, either twin-jet HH-3 "Jolly Greens" or HH-43 "Pedros," move in for the pickup. Each chopper carries a crew of four: pilot, copilot, crew chief (who acts as hoist operator, gunner and mechanical expert), and a para-rescue man expert at parachuting, scuba diving, jungle survival and medical care...