

But because Langley's aircraft never succeeded in flying, these engines did not have the opportunity to demonstrate their potential. The most advanced aircraft engine early in the century was the 50-horsepower (37-kilowatt) engine designed by Charles Manley for use on Samuel Langley's aerodromes. From that point on, increasingly more sophisticated and powerful stationary in-line engines were developed until the arrival of the jet engine a couple of decades later. The best known were the Gnome and Le Rhône, which were used on the majority of aircraft until the in-line Liberty engine, designed for mass production, started dominating the aero-engine market.

These were succeeded by the popular rotary engine. The Antoinette series was the most commonly used. The earliest aero engines were stationary-either radial in style or in line. In the United States, particularly during World War I, automobile manufacturers dominated the aero-engine field until companies that specialized in aircraft engines were established in the 1920s. But very soon, engines started being built in quantity, often by several manufacturers in different countries who were licensed by the designer or initial manufacturer. This type of engine was especially compact for the amount of power it produced and was used in numerous types of aircraft.Īt the start of the twentieth century, aircraft engines were simple, low-powered machines that were designed and built one by one for specific aircraft. The Hispano-Suiza 8BE is a V-type liquid-cooled engine.
