Loading test of wing frames at the plant of Dayton-Wright Co., Dayton & Moraine City, Ohio. The wings are inverted to simulate upward pressure experienced during flight. They are supported at one end only, and this test was carried out for official use only. June 10, 1918.

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Size: 8459px × 5680px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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