Bell Tests Stop/Fold HSVTOL Rotor On Sled Track

Proprotor with folding blades is mounted on a sled for track testing at flight-representative speeds.

Credit: Bell
A sled track normally used to test ejection seats has been employed by Bell to demonstrate the stop/fold rotor system under development for its planned 400-kt. high-speed vertical-takeoff-and-landing (HSVTOL) concept. A three-blade test article was delivered to Holloman AFB, New Mexico, for a...

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