Rotating arm developed by Rotawings Division of Glenn L. Martin Co to simulate flight conditions in testing of helicopter rotors and hubs; stand designed to test any standard proportional rotor hub with 10-ft diam blades; primary interest is in mechanical stability or vibration characteristics of rotor, its hub, blades or controls.
Testing arm for rotors
Am Helicopter
American Helicopter ; 11 , n 8
1948
2 pages
Aufsatz (Zeitschrift)
Englisch
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