Youtor
Flettner Fl 282 Kolibri
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=vKEBu4EcxGw
single-seat intermeshing rotor helicopter, or synchropter, produced by Anton Flettner of Germany. According to Yves Le Bec, the Flettner Fl 282 was the world's first series production helicopter • The German Navy was impressed with the Kolibri and wanted to evaluate it for submarine spotting duties, ordering an initial 15 examples, to be followed by 30 production models. Flight testing of the first two prototypes was carried out through 1941, including repeated takeoffs and landings from a pad mounted on the German cruiser Köln. • https://en.wikipedia.org/wiki/Flettne...
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