Lawrence Hargrave's ornithopter used a radial rotary engine that ran on compressed air (1888).

U.S. Centennial of Flight Commission home page

Lawrence Hargrave's ornithopter used a radial rotary engine that ran on compressed air (1888).

Lawrence Hargrave's ornithopter used a radial rotary engine that ran on compressed air (1888).

Credits - © 2001 National Air and Space Museum,
Smithsonian Institution (SI Neg. No. 78-15800)

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