Public domain
Investigation of Boundary Layer Control to Helicopter Rotor Blades.
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 overhead view. Shaft angle - 35deg.
NASA Image and Video Library’s own descriptionCredit lineInvestigation of Boundary Layer Control to Helicopter Rotor Blades.. NASA/ARC, 1957-01-22. Public domain. ID: A-22383_1.