Public domain
Langley Field, Virginia. YB-17 bombardment squadron. Two members of a ground crew at Langley Field, Virginia services one of the four powerful engines of a YB-17 bomber. The huge engine nacelle and landing wheel give some idea of the masiveness of this warship of the skies
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineLangley Field, Virginia. YB-17 bombardment squadron. Two members of a ground crew at Langley Field, Virginia services one of the four powerful engines of a YB-17 bomber. The huge engine nacelle and la. 1942-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.