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Paul MacCready undertook an aerodynamics experiment testing the flight of Quetzalcoatlus in 1984. He constructed a model flying machine or ornithopter with a simple computer functioning as an autopilot. The model successfully flew with a combination of soaring and wing flapping however, the model was half scale based on a then-current weight estimate of around 80 kg, far lower than more modern estimates of over 200 kg.
