Chart showing the evolution of aircraft engines from 1903 to 1918. The chart includes the horsepower, weight, and power of various engines, including the Liberty engine, from 1911 to 1918. The chart was issued by the National Advisory Committee for Aeronautics in May 1918.

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Size: 9178px × 6297px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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