This report presents results obtained during the first 8 months of proof-of-concept flight testing of the aircraft in STOL configurations. Included are a brief description of the aircraft, fan-jet engines, and systems:a discussion of the aerodynamic, stability and control, and STOL performance:and pilot opinion of the handling qualities and operational characteristics. The tests did not include' flight near maximum lift coefficient because of the limitations of the longitudinal control system. Flight tests at high angles of attack at or near Clmax will be conducted following medications to the aircraft to incorporate a powered longitudinal control system.
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