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Helicopter tail boom with venting for alleviation and control of tail boom aerodynamic loads and method thereof

  • US 6,352,220 B1
  • Filed: 06/02/2000
  • Issued: 03/05/2002
  • Est. Priority Date: 06/02/2000
  • Status: Expired due to Fees
First Claim
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1. A flight vehicle tail assembly comprising:

  • A. an exterior surface;

    B. at least one first vent in the exterior surface;

    C. at least one second vent in the exterior surface;

    D. an air passage connecting the at least one first vent and at least one second vent allowing air to flow therebetween;

    wherein the at least one first vent is-located at least near a high air pressure area acting on the exterior surface during a range of predefined flight conditions, and wherein the at least one second vent is located at least near a low air pressure area acting on the exterior surface during said predefined flight conditions; and

    at least one first vent door attached to the tail assembly, wherein the at least one first vent door has a first door closed position, and wherein with the at least one first vent door is the first door closed position the at least one first vent door covers at least a portion of the at least one first vent.

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