The Helicopters are Coming |
Contents
APPENDIX List of Organizations Engaged in Manufac ture or Development of Helicopters | 1 |
228 | 19 |
59 | 38 |
Copyright | |
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achieve aerial aerodynamic Aeronautics air transport airline airplane airport Airway Traffic Control altitude auto autogiro automatic automobile aviation aviation industry Bell Aircraft Bothezat Bréguet build built cabin Calif cities companies congested copter Corp cost craft deck direction economic efficient Emile Berliner Enea Bossi engine equipped feet field flight flown flying Focke helicopter fuselage future gear giro Government ground party hangar heli helicopter design helicopter landings heliports Higgins Industries highway increased instrument lift machine manufacturers mechanical ment miles per hour military minutes Morris operation passengers Paul Cornu pick pilot pitch plane possible private aircraft problems production propeller proved radio railroad reached roof rotary-wing aircraft rotating in opposite rudder safe safety scheduled air transport shaft ship Sikorsky helicopter speed successful tail rotor take-off tilting tion torque reaction types United utility vehicle vertical weather wind Wright Field