World Record Electric Helicopter 30 Minute Flight 16Feb17 from martine Rothblatt on Vimeo.
World Record Electric Helicopter 30 Minute Flight 16Feb17 from martine Rothblatt on Vimeo.
https://vimeo.com/205685915
World Record Electric Helicopter 30 Minute Flight 16Feb17 from martine Rothblatt on Vimeo.
World Record Electric Helicopter 30 Minute Flight 16Feb17 from martine Rothblatt on Vimeo.