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Vertical takeoff and landing aircraft

  • US 3,966,142 A
  • Filed: 03/06/1975
  • Issued: 06/29/1976
  • Est. Priority Date: 03/06/1975
  • Status: Expired due to Term
First Claim
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1. An aircraft having a fuselage, wings, empennage and propulsion means,said wings being attached to said fuselage,said propulsion means producing a thrust,means for rotating said thrust with respect to said wings and said fuselage,said empennage being rotatable as a unit with respect to said fuselage,wherein said empennage rotates in concert with the rotation of said thrust whereby the efflux of said propulsion means is directed at and impinges on said empennage.

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