1916 Indian Powerplus
Hendee Manufacturing Company
Loan: Courtesy of Connecticut Valley Historical Museum, Springfield, Massachusetts, Gift of Esta K. Manthos
In 1916, Indian introduced its famous 61-cubic-inch, flathead V-twin Powerplus engine, with a three-speed transmission, foot-operated clutch, and chain drive. In 1916, sisters Adeline and Augusta Van Buren became the first women to cross the United States on a pair of Indian Powerplus motorcycles. When the United States entered World War I, almost the entire production of Powerplus motorcycles was turned over to the military. The Powerplus continued in production until 1924.