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Method and apparatus for generating lift

  • US 7,677,502 B2
  • Filed: 09/29/2005
  • Issued: 03/16/2010
  • Est. Priority Date: 09/29/2005
  • Status: Active Grant
First Claim
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1. A method of generating lift for an aircraft, said method comprising:

  • heating a flow of gas using a gas generator mounted on the aircraft that contributes no more than about ten percent of thrust used to propel the aircraft in a forward direction;

    driving a lift fan using the heated gas flow to generate lift for the aircraft; and

    directing at least a portion of the heated gas exiting the lift fan over a wing control surface of the aircraft, including directing at least a portion of the heated gas over an internally blown flap (IBF) of the aircraft.

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