2 Ergebnisse für: max1200
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720p HD Strange Helicopter! (twin counter-rotating blades) for heavy lift - YouTube
https://www.youtube.com/watch?v=FqWvDEMOzOo&feature=related
This unusual helicopter was being used to transport large and apparently heavy loads to the construction crews at remote 500kv power transmission line tower ...
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Kaman HTK-1K - the first unmanned helicopter (1953) - YouTube
https://www.youtube.com/watch?v=X1dIzvp5aMc
From "You Asked for It" tv Show