The video was shot at the first Heli Speed Cup, organised by Bernd Pöting in Kreuztal-Littfeld in Germany.
This flight took place after the main event, three pilots with identical machines took to the air at the same time.
Simply amazing performance. Tech specs:
1.6m rotor diameter (.90 size but electric)
4-4.3 kgs (9-10 pounds) AUW
Pyro motor and Jive HV ESC on 12S 3700-4000 lipos or 10S 4500 lipos
Amazing stuff...the crowd (and I) sure loved it ;)
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