Aircraft performance margin indicator

摘要: An aircraft performance margin indicator including a display (21) that, during takeoff and landing, informs the pilot of ability to either stop safely or achieve safe flying speed before reaching end runway is disclosed. A plurality dedicated microprocessors (41, 43, 45, 47), each which receives pertinent data about aircraft, existing environmental conditions, produce one more symbol control signals. The signals position symbols that form part (21). scale normalized includes an airplane (23) shows location as moves down runway. microprocessor controlled include GO STOP bugs (25 31) ROTATE bar (27). indicates last point at can be rotated under present FFA regulations. bug (25) application maximum thrust will result in rotation (at position) takeoff. braking stopping As long remain front symbol, denoted option (go stop) remains available. Once passes bug, no longer Preferably, also include: engine-out (EO) (29) allow with inoperative engine; and, VMC (33) indicating distance needed time achieves minimum speed.