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Maurice Léger's Electric Helicopter (1905), the Berliner/Williams Helicopter (1907), the PZK 1 and PZK 2 Helicopters (1917-1918) and the de Bothezat Helicopter (1922): The Facts and Fictions Surrounding Four (Justifiably?) Dubious Rotary-Wing Firsts

Maurice Léger's Electric Helicopter (1905), the Berliner/Williams Helicopter (1907), the PZK 1 and PZK 2 Helicopters (1917-1918) and the de Bothezat Helicopter (1922): The Facts and Fictions Surrounding Four (Justifiably?) Dubious Rotary-Wing Firsts

  • Presented at Forum 69
  • 19 pages
  • SKU # : 69-2013-0019

  • Your Price : $30.00

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Maurice Léger's Electric Helicopter (1905), the Berliner/Williams Helicopter (1907), the PZK 1 and PZK 2 Helicopters (1917-1918) and the de Bothezat Helicopter (1922): The Facts and Fictions Surrounding Four (Justifiably?) Dubious Rotary-Wing Firsts

Authors / Details: Bruce Charnov, Hofstra University