Word: gyropilot
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...Lawrence Sperry, who drowned in the English Channel in 1923. was the youngest son of famed Inventor Elmer A. Sperry (marine gyrocompass and gyroscope). A pioneer of air instruments and of blind flying, Lawrence Sperry invented such indispensable aids to flight as the gyropilot, bank & turn indicator, early efficient parachute. His family last year endowed with $10,000 an annual award for the greatest contribution to aeronautics by men under...