Ofbyld:HE2G13.jpg
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HE2G13.jpg (327 × 432 pixels, bestânsgrutte: 52 KB, MIME-type: image/jpeg)
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Gearfetting
BeskriuwingHE2G13.jpg |
English: Cornu helicopter. 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. |
Datum |
circa 1907 date QS:P,+1907-00-00T00:00:00Z/9,P1480,Q5727902 |
Boarne | The U.S. Centennial of Flight Commission |
Auteur |
ÛnbekendUnknown © 2001 Smithsonian Institution, National Air and Space Museum, Videodisc. 2B 5847 |
Tastimming (Reusing this file) |
PD-USGov |
Lisinsje
Public domainPublic domainfalsefalse |
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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2007-01-04 21:10 Signaleer 327×432× (47053 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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Triemskiednis
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Datum/Tiid | Miniatuer | ôfmjittings | Meidogger | Opmerking | |
---|---|---|---|---|---|
lêste | 16 sep 2018, 05.18 | ![]() | 327 × 432 (52 KB) | WikiPedant | adjusted levels |
8 feb 2010, 11.13 | ![]() | 327 × 432 (46 KB) | File Upload Bot (Magnus Manske) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|''no original description''}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia]; transfer |
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