VTOL to Transonic Aircraft

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NND06AA26C
Agency Tracking Number: 054642
Amount: $69,989.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2005
Solicitation Topic Code: A2.07
Solicitation Number: N/A
Small Business Information
3475 Edison Way Bldg P, Menlo Park, CA, 94025-1873
DUNS: 809641533
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Clark
 Principal Investigator
 (650) 369-6783
 bob@acuitytx.com
Business Contact
 Robert Clark
Title: Preident
Phone: (650) 369-6783
Email: bob@acuitytx.com
Research Institution
N/A
Abstract
The cyclogyro, an aircraft propulsion concept with the potential for VTOL to the lower bounds of transonic flight, is conceptually simple but structurally and aerodynamically complex. To our knowledge no cyclogyro has ever flown. We propose to demonstrate through simulation and rotor testing that with appropriately designed cyclogyro rotors and propulsion algorithms, aircraft can transition smoothly from low-speed and vertical flight to near-transonic forward flight. We posit that lift and propulsion can be achieved while increasing the aircraft critical mach number above that of conventional subsonic airplanes with fixed wings. We will show that thrust and lift can be maintained across all speeds, and attainable thrust increases with increasing airspeed for constant rotor speed. Gliding and vertical autorotation can be performed safely with rotors stopped or rotating, respectively.

* Information listed above is at the time of submission. *

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