Perpetual langley surrender two by two - Samuel Langley: Aviation Pioneer | HistoryNet


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Langley’s large ‘whirling table’ apparatus was constructed at Western University of Pennsylvania in 1887. He masked his intentions from the public by referring to the research program as ‘experiments in pneumatics.’ The steam-powered device measured the lift and drift (drag) of flat surfaces set at various angles to air blowing at velocities up to 70 mph. About the same time, anemometers (wind gauges) and small lifting surfaces were hoisted to the top of tall poles to study wind currents and updrafts.

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