1917 Liberty L12 A American designed engine to be used in combat in WWI. Early Airplanes E

1917 Liberty L12-A. The Only American Designed engine to be used in combat in WWI Early Airplanes Engines -5 45-Degree V-12 1649 Cubic inches , Water .
more at How World War I aircraft were made. Footage shows the harvesting and shipping of spruce .