The Liberty L-10 is an American aircraft engine developed in the early 1920s. It is a ten-cylinder, air-cooled, V-type engine that was designed for use in various military and civilian aircraft. The L-10 was known for its reliability and performance, making it a popular choice during its time. This engine was part of the broader Liberty Engine program, which aimed to produce powerful engines for World War I aircraft. The L-10 contributed to advancements in aviation technology and helped establish the United States as a leader in aircraft engine manufacturing during the post-war period.