Analysis of information sources in references of the Wikipedia article "Liberty L-12" in English language version.
Produced in large numbers and used extensively in mail planes following the War, the Liberty was a significant U.S. contribution to aviation. Jesse Vincent of Packard and E.J. Hall of Hall-Scott designed the engine in five days. One month later the first prototype was built and running.
Produced in large numbers and used extensively in mail planes following the War, the Liberty was a significant U.S. contribution to aviation. Jesse Vincent of Packard and E.J. Hall of Hall-Scott designed the engine in five days. One month later the first prototype was built and running.