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    Helicopter problems (1937)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The present report deals with a number of the main problems requiring solution in the development of helicopters and concerning the lift, flying performance, stability, and drive. A complete solution is given for the stability of the helicopter with rigid blades and control surfaces. With a view to making a direct-lift propeller sufficient without the addition of auxiliary propellers, the "flapping drive" is assessed and its efficiency calculated.
    Type: NACA-TM-827
    Format: application/pdf
    Location Call Number Expected Availability
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