The Hispano-Suiza 8 is a water-cooled V8 SOHC aero engine introduced by Hispano-Suiza in 1914 that went on to become the most commonly used liquid-cooled engine in the aircraft of the Entente Powers during the First World War. The original Hispano-Suiza 8A was rated at 140 hp (100 kW) and the later, larger displacement Hispano-Suiza 8F reached 330 hp (250 kW).
Hispano Suiza 8Ca. The large shafts that drove the valves are visible at the back of the cylinder banks.
The Curtiss JN "Jenny" was a series of biplanes built by the Glenn Curtiss Aeroplane Company of Hammondsport, New York, later the Curtiss Aeroplane and Motor Company. Although the Curtiss JN series was originally produced as a training aircraft for the US Army, the "Jenny" continued after World War I as a civilian aircraft, as it became the "backbone of American postwar [civil] aviation".
Curtiss JN-3, the progenitor of the JN-4, deployed to Mexico, around 1916
Curtiss JN-4Ds at Camp Taliaferro, Texas, circa 1918
Converted JN-4 ambulance, operated by the Camp Taliaferro medical teams, around 1918