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 Propellers
convert engine power into thrust by accelerating a column of air. Even the
earliest wooden propellers used by the Wright Brothers were marvels of
efficiency and ingenuity. Over time propellers continued to improve. Better
materials made them lighter and stronger. Controllable blade pitch made them
more versatile and improved performance of the aircraft using them.
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American Propeller Co. (1925)
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US Army Air Service (1925)
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US Army Air Service (1925)
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US Army Air Service (1925)
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Curtiss P-36 with the first Experimental Curtiss-Electric Four-bladed Controllable-Pitch Propeller (1939)
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Boeing Model
377 Stratocruiser Propeller Woes, by Carl Kuhns (128K PDF)
Propeller
Stories
  
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