The engine in the background is one of the four Liberty 12 Model A's that powered the Navy-Curtiss NC-4, the first aircraft to cross the Atlantic Ocean, May 16-31, 1919. The Ford Liberty 12 Model A engine was America's most important contribution to aeronautical technology during World War I. It powered such aircraft as the de Havilland DH-4, Fokker T2, Loening Model 23, Douglas World Cruiser, Douglas M-1 Mailplane, and Curtiss H-16 flying boat.
Bristol Jupiter VIIIF and Ford Liberty 12
The Jupiter was the U.K.'s most successful high-power, air-cooled engine in the 1920s and 1930s. Bristol and its licensees built more than 7,000 Jupiters for at least 262 different aircraft types.