Retracted Rotor Helicopter Program, 1966-1968

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L-500, 1966, 1968, 1970
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Rigid Rotor Helicopters. AH-56 Cheyenne. Advanced Aerial Fire Support System (AAFSS). Miscellaneous, 1966-1968, 1970-1972, 1975, 1977, n.d
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Rigid Rotor Helicopters. AH-56 Cheyenne. Advanced Attack Helicopter (AAH) Comparison, 1979
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Tactical Missiles / Antitank/Assault Weapon (VIPER) Program, 1966-1968
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