Public domain
Tilt Wing Propeller Model Tested in the Ames 40x80 Foot Wind Tunnel.
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Tilt wing propeller model. 3/4 front view. 4 prop tilt wing nose down variable struts on ground board. Leo Holl, NASA Ames Engineer.
NASA Image and Video Library’s own descriptionCredit lineTilt Wing Propeller Model Tested in the Ames 40x80 Foot Wind Tunnel.. NASA/ARC, 1960-05-14. Public domain. ID: A-26612.