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Boundary-Layer Control to Helicopter Rotor Blades.
Public domain

Boundary-Layer Control to Helicopter Rotor Blades.

NASA / ARC · 1957-01-22 · photograph (digital archive)

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

About this work

Experimental investigation of boundary-layer control to helicopter rotor blades to increase forward speed capabilities. 3/4 front view. Shaft angle - 35deg. John Mc.Cloud in picture. He was a good guy.

NASA Image and Video Library’s own description
Subjects
HelicopterARCAmes40x80ftWind TunnelBoundary LayerAeronautics
Credit lineBoundary-Layer Control to Helicopter Rotor Blades.. NASA/ARC, 1957-01-22. Public domain. ID: A-22383.
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