Public domain
ARC-1980-AC80-0120-3
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
Sikorsky Bearingless Main Rotor test in 40x80ft w.t.
NASA Image and Video Library’s own descriptionSubjects
Credit lineARC-1980-AC80-0120-3. NASA/ARC, 1980-02-08. Public domain. ID: ARC-1980-AC80-0120-3.