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Development of Pneumatic Channel Wing Powered-Lift Advanced Super-STOL AircraftThe powered-lift Channel Wing concept has been combined with pneumatic Circulation Control aerodynamic and propulsive technology to generate a Pneumatic Channel Wing configuration intended to have Super-STOL or VSTOL capability while eliminating many of the operational problem areas of the original Channel Wing vehicle. A preliminary design study of this pneumatic vehicle based on previous wind-tunnel and flight-test data for the two technologies integrated into a simple Pneumatic Channel Wing (PCW) configuration showed very strong Super-STOL potential. Wind-tunnel development and evaluations of a PCW powered model conducted at Georgia Tech Research Institute (GTRI) have shown substantial lift capabilities for the blown configuration (C(sub L) values of 8.5 to 9.0). Variation in blowing of the channel was shown to be more efficient than variation in propeller thrust. Also revealed was the ability to operate unstalled at very high angles of attack of 40 deg-45 deg, or to achieve very high lift at much lower angle of attack to increase visibility and controllability. In order to provide greater flexibility in Super-STOL takeoffs and landings, the blown model also displayed the ability to interchange thrust and drag by varying blowing without any moving parts. This paper presents these experimental results, discusses variations in the configuration geometry under development, and extends this integrated technology to advanced design studies of PCW-type vehicles.
Document ID
20030003783
Acquisition Source
Langley Research Center
Document Type
Contractor or Grantee Report
Authors
Englar, Robert J.
(Georgia Tech Research Inst. Atlanta, GA United States)
Campbell, Bryan A.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2002
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA Paper 2002-2929
Meeting Information
Meeting: 20th AIAA Applied Aerodynamics Conference
Location: Saint Louis, MO
Country: United States
Start Date: June 24, 2002
End Date: June 26, 2002
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
PROJECT: GTRI Proj. A-5942
CONTRACT_GRANT: NAG1-2169
Distribution Limits
Public
Copyright
Public Use Permitted.
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