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A Proposed Solution To The Longitudinal Instabilities Of The Ball-Bartoe Jetwing Through The Addition Of A Thin, Fixed Slat To The Horizontal Tail, Steven L. Sisterman
A Proposed Solution To The Longitudinal Instabilities Of The Ball-Bartoe Jetwing Through The Addition Of A Thin, Fixed Slat To The Horizontal Tail, Steven L. Sisterman
Masters Theses
The Ball-Bartoe Jetwing research aircraft was developed as a STOL demonstrator vehicle employing single engine powered lift by means of upper surface blowing. Unfortunately, the aircraft has been plagued by longitudinal instabilities since the first flight. These instabilities have prevented an exploration of the full STOL potential of the aircraft since the problem becomes more severe during low airspeed flight.
A review of the historical data indicated that the instabilities may be attributed to the downwash flow that blanketed the horizontal tail in certain flight conditions. As the blown flaps were deflected to increase lift at low airspeeds, the resulting …