KillerBeeMoto: Bell UH-1 Iroquois Pen & Ink With Water Color Effect Limited Print 1 of 100 These hand drawn sketches are made with pen and ink and then followed up with a water color effect. Limited to 100 printed reproductions. The Bell UH-1 Iroquois (nicknamed "Huey") is a military helicopter powered by a single turboshaft engine, with two-blade main and tail rotors. The first member of the prolific Huey family, it was developed by Bell Helicopter to meet a United States Army's 1952 requirement for a medical evacuation and utility helicopter, and first flew in 1956. The UH-1 was the first turbine-powered helicopter to enter production for the United States military, in 1960, and more than 16,000 have since been built. The Iroquois was originally designated HU-1, hence the Huey nickname, which has remained in common use, despite the official redesignation to UH-1 in 1962. The UH-1 first saw service in combat operations during the Vietnam War, with around 7,000 helicopters deployed. The Bell 204 and 205 are Iroquois versions developed for the civil market.