The AOA computer receives input from the AOA vane, flap position microswitch, and the ______.

• A. AOA vane, flap position microswitch, landing gear (when extended)
• B. Pitot tube, flap lever, outboard gear door switch (when extended)
• C. AOA vane, elevator position microswitch, landing gear lever (when extended)
• D. AOA indexer, flap gauge, and the landing gear weight on wheels switch

Answer: (A)

The key idea is that the AOA computer combines the actual angle of attack with current aircraft configuration to determine stall margins and warnings. It uses the AOA vane to get the real AoA, the flap position via a microswitch to account for how different flap settings change the stall angle, and the landing gear position to adjust for the aerodynamics when gear is down. Pitot tube data isn’t used for AoA calculations, since it measures airspeed, not angle. Elevator position or gear lever inputs aren’t part of the AoA computer’s configuration inputs, and an AOA indexer or standalone flap gauge isn’t a direct feed to the computer. So the correct input set is the AOA vane, the flap position microswitch, and the landing gear position when extended.