Image: HE2G8
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Description: In 1907, the French inventor Paul Cornu made a helicopter that used two 20-foot (6-meter) counter-rotating rotors driven by a 24-hp (18-kW) Antoinette engine. It lifted its inventor to about five feet (1.5 meters) and remained aloft one minute.
Title: HE2G8
Credit: http://www.centennialofflight.gov/essay/Rotary/early_20th_century/HE2G8.htm Transferred from en.wikipedia
Author: Unknown
Permission: PD-USGOV
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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