This report presents the results of flight tests of a stiff-in-plane flexbeam hingeless four-bladed main rotor, hereafter referred to as the Model 609. The tests were conducted on a modified UH-1 at gross weights from 10,000 to 14,000 pounds and at level-flight speeds up to 150 knots to evaluate performance, handling qualities, maneuverability, and load levels. The tests also evaluated a focused pylon system designed for isolating rotor vibrations. (Modified author abstract)
Flight Test of a Hingeless Flexbeam Rotor System
1974
214 pages
Report
No indication
English
Flexbeam unit for a hingeless or a hinge and bearingless multi-blade rotor of a rotary wing aircraft
European Patent Office | 2017
|European Patent Office | 2017
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