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the runway end appears to be moving towards you, you will land long. Reduce your power, but maintain your airspeed by lowering the nose as necessary. If the runway end appears to be moving away, you will land short. Add power but maintain your airspeed by raising the nose as necessary. If there is no relative movement of the runway end you will touchdown in the landing
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Hal Stoen (Flying Airplanes VFR: How to fly airplanes, real and simulated. What the instruments mean, taking the Private Pilot flight test, and more.....)