ATTACK

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 1691
Amount: $29,992.00
Phase: Phase I
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Dei-tech Incorporation
703 Middle Ground Boulevard, Newport News, VA, 23606
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 ROBERT T. TAYLOR
 INVESTIGATOR
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
RECENT ADVANCES IN THE UNDERSTANDING OF FLIGHT AT POST STALL CONDITIONS HAVE SHOWN A POTENTIAL MANEUVERING BENEFIT IN ALLOWING QUICKER MORE AGILE TURNING WITH AN ATTENDANT TIME ON TARGET ADVANTAGE. FURTHERMORE, STALL AND SPIN RECOVERY HAS BEEN SHOWN TO BE MADE MORE EFFECTIVE USING A COMPANY PATENTED, MODIFIED HORIZONTAL CONTROL SURFACE. THIS PROJECT (PHASE I) IS AIMED AT DEVELOPING METHODS FOR THE EXTRACTION OF AERODYNAMIC DERIVATIVES FROM FLIGHT DATA AT HIGH ANGLES OF ATTACK, AND INCLUDES COMPARISON OF THE DERIVATIVES SO DETERMINED WITH WIND TUNNEL DERIVATIVES. IN ADDITION, THE WORK INCLUDES ANALYSIS OF INSTRUMENT ERRORS AND THE PROPAGATION OF THESE ERRORS THROUGH THE DERIVATIVE EXTRACTION PROCESS. A PHASE II EFFORT WOULD DEVELOP HIGH ANGLE OF ATTACK MANEUVERS AIMED AT THE DETECTION OF CROSS DERIVATIVES AND AT ACCELERATION RELATED DERIVATIVES. THESE TESTS WILL ENABLE AN ASSESSMENT OF THE NEED FOR NEW GROUND BASED FACILITIES AND TESTS AS WELL AS MANNED FLIGHT TESTING REQUIREMENTS FOR HIGH ANGLE OF ATTACK FLIGHT. FINALLY, HYSTERESIS EFFECTS WILL BE EXPLORED AT HIGH ANGLES OF ATTACK AND METHODS WILL BE PROPOSED FOR THEIR INCLUSION IN THE EQUATIONS OF MOTION.

* information listed above is at the time of submission.

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