Transitioning to Alpha Systems AOA (cont.)
The Alpha Systems AOA takes a different approach. Since each wing design has a coefficient of lift specific to the airplane and every aircraft has different flight dynamics, we'll design a system that can be calibrated, in flight to give lift information (AOA) from a 3 inch probe that's mounted solidly in reference to the cord of the aircraft's wing. This system, once calibrated, will indicate, just like the military, Optimum Alpha Angle (OAA) "flying the Doughnut" and ranges of lift above and below the OAA. We believe to much available lift can become a problem just as much as not enough lift during slow flight. Our instrument gets calibrated to your aircraft. The wing design allows the aircraft to climb, hold and descend based on the coefficient of lift, power (thurst). AOA is repaeatable and accurate. If you don't believe me just ask any Military pilot...
Our system is not calibrated at Stall; we identify the number of LED's that represents Stall after the calibration procedure has been successfully entered. Calibrating at a point that identifies, at a lower power setting (pattern power RPM or manifold setting), 1.) The slowest your aircraft can fly to. 2.) Hold altitude, NOT in a Decent (small amount of climb OK), as close to 0 vertical speed as possible. 3.) WITH complete aileron, elevator and rudder authority. What the pilot has to identify imperially simply by slow flying, at a safe altitude, the aircraft's lift capability showing the AOA calibrated to the aircraft.
Alpha Systems AOA displays the complete range of slow flight. From; No Lift, Stall, OAA, Max Climb, VX, VY, Up to Cruise. The wing is the key to allow angle of attack information to be calibrated and displayed to help the pilot take off, fly, land safer....This is AOA!
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