Indian Motocycle Manufacturing Company color options in 1934. Models of that era had Indian's famous war bonnet logo on the gas tank. Indian's huge Springfield factory was known as the Wigwam, and native American imagery was much used in advertising. In 1940, Indian sold nearly as many motorcycles as its major rival, Harley-Davidson. During this time, Indian also manufactured other products such as aircraft engines, bicycles, boat motors and air conditioners. The Indian Scout was built from 1920 through 1949. It rivaled the Chief as Indian's most important model. The Scout was introduced for 1920. Designed by Charles B. Franklin, the Scout had its
Harley-Davidson ULH, and the 45-cubic-inch (740 cc) R to be renamed W. In 1941, the 74-cubic-inch (1,210 cm³) "Knucklehead" was introduced as the F and the FL. The 80-cubic-inch (1,300 cc) flathead UH and ULH models were discontinued after 1941, while the 74 inch (1210 cm³) U & UL flathead models were produced up to 1948. One of only two American cycle manufacturers to survive the Great Depression, Harley-Davidson again produced large numbers of motorcycles for the US Army in World War II and resumed civilian production afterwards, producing a range of large V-twin motorcycles that were successful both on racetracks