This image or file is a work of a
U.S. Air Force Airman or employee, taken or made as part of that person's official duties. As a
work of the
U.S. federal government, the image or file is in the public domain in the United States.
The Liberty V eight-cylinder engine which preceded the Liberty-12. It was the first Liberty engine tested in an aircraft, on August 29, 1917. Credits - U.S. Air Force Museum Found at http://www.wpafb.af.mil/museum/engines/eng27.htm {{PD-USGov-Military-
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