Development of Lockheed gyro-controlled rotor system has made possible attainment of practical rigid rotor; boundaries of forward-flight performance of differing types of helicopters are shown by plotting rotor-tip speed vs forward flight speed; slowed and stopped-rotor concepts and studies carried out showing examples and results obtained; historical development of compound and convertible helicopters.
Extending helicopter speed performance
Lockheed Horizons
Lockheed Horizons ; n 6
1967
33 pages
Aufsatz (Zeitschrift)
Englisch
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