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Controllable Twist Rotor in 40x80 Foot Wind Tunnel at Ames.
Public domain

Controllable Twist Rotor in 40x80 Foot Wind Tunnel at Ames.

NASA / ARC · 1975-07-18 · photograph (digital archive)

From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.

About this work

3/4 lower rear view of Controllable Twist Rotor (CTR) test of 4 blade helicopter model. Pictures with Ben Mandwyler Andy Lemnios, in 40x80 foot wind tunnel. Small flaps on rotor blades.

NASA Image and Video Library’s own description
Subjects
AmesARCAeronautics40x80ftWind TunnelHelicopter
Credit lineControllable Twist Rotor in 40x80 Foot Wind Tunnel at Ames.. NASA/ARC, 1975-07-18. Public domain. ID: AC75-1633-002.
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