The Bell Helicopter UH-1 Iroquois, commonly (or officially in the U.S. Marine Corps) known as the "Huey", is a multipurpose military helicopter, famous for its use in the Vietnam War. The UH-1 was developed from 1955 US Army trials with the Bell Model 204. The initial designation of HU-1 (helicopter utility) led to its nickname, Huey. The nickname became so popular that Bell started putting the Huey name on the anti-torque pedals.