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Vertical short takeoff and landing apparatus

  • US 9,561,851 B2
  • Filed: 03/16/2015
  • Issued: 02/07/2017
  • Est. Priority Date: 11/16/2011
  • Status: Active Grant
First Claim
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1. A vertical short takeoff and landing (VSTOL) apparatus, comprising:

  • a pair of counter-rotating power rings, each power ring having a plurality of airfoils attached thereto via respective first connection elements;

    an articulation system comprising;

    a control ring having at least a portion of the plurality of airfoils attached thereto via respective second connection elements, the control ring configured to rotate with one of the pair of counter-rotating power rings; and

    an articulation apparatus configured to raise or depress at least a portion of the control ring with respect to the pair of counter-rotating power rings thereby articulating at least one of the plurality of airfoils; and

    one or more motors, the one or more motors configured to rotate the pair of counter-rotating power rings.

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