onsdag 27. mai 2015

Helikopter - Raiders første flyvning - Video

  Sikorsky’s S-97 Raider First Flight

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 Sjekk video her: http://tinyurl.com/nfg9nfp
Sikorsky’s S-97 Raider high-speed helicopter made an hour-long first
flight on May 22 at the company’s development flight center in West
Palm Beach, Florida. The rigid coaxial-rotor Raider hovered and
maneuvered at low speed, with its pusher propulsor disconnected
(but turning due to friction). The flight begins a year-long, roughly
100-flight-hour test program to expand to Raider’s flight envelope to
meet Sikorsky’s key targets of 220-kt. cruise speed carrying weapons,
hover at 6,000 ft. on a 95F day, and 3g maneuverability at speed.

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