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  • Other Sources  (3)
  • 1930-1934  (3)
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Year
  • 1
    facet.materialart.
    Unknown
    Fire prevention on aircraft (1931)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The following discussion is at first restricted to the light-oil engines now in use. We shall consider how far it is possible to reduce fire hazards by changes in the design of the engines and carburetors and in the arrangement of the fuel pipes.
    Type: NACA-TM-628
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    Resonance vibrations of aircraft propellers (1932)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: On the basis of the consideration of various possible kinds of propeller vibrations, the resonance vibrations caused by unequal impacts of the propeller blades appear to be the most important. Their theoretical investigation is made by separate analysis of torsional and bending vibrations. This method is justified by the very great difference in the two natural frequencies of aircraft propeller blades. The calculated data are illustrated by practical examples. Thereby the observed vibration phenomenon in the given examples is explained by a bending resonance, for which the bending frequency of the propeller is equal to twice the revolution speed.
    Type: NACA-TM-657
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
    facet.materialart.
    Unknown
    Propeller Tip Flutter (1932)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The present report is limited to a case of tip flutter recognized by experience as being important. It is the case where outside interferences force vibrations upon the propeller. Such interferences may be set up by the engine, or they may be the result of an unsymmetrical field of flow.
    Type: NACA-TM-683
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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