초록 ▼

This invention generally concerns an aircraft useful for training pilots, and specifically involves providing a trainer aircraft having high to moderate aspect ratio wings with selectively operable design features that impart to the trainer aircraft the handling characteristics of a high performance

This invention generally concerns an aircraft useful for training pilots, and specifically involves providing a trainer aircraft having high to moderate aspect ratio wings with selectively operable design features that impart to the trainer aircraft the handling characteristics of a high performance, swept wing aircraft in an approach and landing configuration. In particular, the high performance swept wing aircraft characteristics are preferably imparted by selectively actuated primary and secondary speed brake mechanisms. Optimally, the primary speed brake mechanism is positioned as a function of angle of attack of the aircraft.

대표청구항 ▼

In a trainer aircraft, in combination: (a) speed brake means, said speed brake means being movable from a faired position to a uniform stationary initial open position, and from said initial open position to a full open position; (b) actuator means connected in moving relation to said speed brake me

In a trainer aircraft, in combination: (a) speed brake means, said speed brake means being movable from a faired position to a uniform stationary initial open position, and from said initial open position to a full open position; (b) actuator means connected in moving relation to said speed brake means; (c) angle of attack sensor means; and (d) control means connected to said actuator means responsive to said angle of attack sensor means for modulating through said actuator means the position of said speed brake means from said faired position to said initial open position as a step function and in the range of said initial open position to said full open position as a function of the angle of attack of said trainer aircraft, said speed brake means being rotated approximately 10°from said faired position to said initial open position, and approximately an additional 40°from said initial open position to said full open position, said speed brake means being modulated over said range of said initial open position to said full open position through a range of approximately 5°sensed by said angle of attack sensor means.