Public domain
Bell Helicopter Rotor Test 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
Top Plan view of Bell Rotor with Ed Verrett left frame. Test #437.
NASA Image and Video Library’s own descriptionCredit lineBell Helicopter Rotor Test in the Ames 40x80 foot wind tunnel.. NASA/ARC, 1974-04-11. Public domain. ID: AC74-1332.
