Public domain
Low Disc Loading Tilt Rotors In Hovering And Cruise Flights in 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
3/4 lower front view of tilt rotor propeller.
NASA Image and Video Library’s own descriptionCredit lineLow Disc Loading Tilt Rotors In Hovering And Cruise Flights in Ames 40x80 foot Wind Tunnel.. NASA/ARC, 1968-10-23. Public domain. ID: A-41658.