Helikopter: Perbedaan antara revisi
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Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8 |
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Baris 231:
* [http://centennialofflight.com/history/helicopter.html History of helicopters]
* [http://www.aerospaceweb.org/design/helicopter/history.shtml Page containing an image of a Chinese flying top]
* [http://www.centennialofflight.gov/essay/Rotary/early_20th_century/HE2.htm Helicopter development in the early 20th century] {{Webarchive|url=https://web.archive.org/web/20120505230212/http://www.centennialofflight.gov/essay/Rotary/early_20th_century/HE2.htm |date=2012-05-05 }}
* [http://www.centennialofflight.gov/essay/Dictionary/helicopter/DI27.htm Description of a helicopter]
* [http://www.b-domke.de/AviationImages/Rotorhead.html http://www.b-domke.de/ Helicopter Rotorhead Gallery]
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