The Liberty engine family refers to a series of aircraft engines developed by General Motors during World War I. These engines were designed to provide reliable power for various military aircraft, contributing to the war effort. The most notable model was the Liberty L-12, a V12 engine that became widely used due to its performance and efficiency. The Liberty engine family included several variants, with different configurations and power outputs. These engines were significant in advancing aviation technology at the time and laid the groundwork for future developments in aircraft propulsion systems. Their legacy continues to influence modern engine design.