Image:HE2G13.jpg
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HE2G13.jpg (327 × 432 pixel, file size: 46 KB, MIME type: image/jpeg)
[edit] Summary
Paul Cornu in his first helicopter in 1907. Note that he is sitting between the two rotors, which rotated in opposite directions to cancel torque. This helicopter was the first flying machine to have risen from the ground using rotor blades instead of wings.
Credits - © 2001 Smithsonian Institution, National Air and Space Museum, Videodisc. 2B 5847
[edit] Source
http://www.centennialofflight.gov/essay/Rotary/early_20th_century/HE2G13.htm
[edit] Licensing
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This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of 17 U.S.C. § 105. See Copyright.
Note: This only applies to works of the Federal Government and not to the work of any individual US state, territory, commonwealth, county, subdivision, or municipality. |
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- (del) (cur) 21:10, 4 January 2007 . . Signaleer (Talk | contribs) . . 327×432 (47,053 bytes) (Paul Cornu in his first helicopter in 1907. Note that he is sitting between the two rotors, which rotated in opposite directions to cancel torque. This helicopter was the first flying machine to have risen from the ground using rotor blades instead of win)
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