The Bell UH-1 Iroquois, referred to as "Huey", is a multipurpose military helicopter, was developed from 1955 united states of america Army studies with the Bell Model 204. The initial designation of HU-1 (helicopter power) triggered its nickname, Huey. It had been first employed by the military in 1959 and went into tri-service manufacturing in 1962 mainly because UH-1. Yesteryear had been stated in 1976 with additional than 16,000 stated in total, which about 7,000 saw use through the entire Vietnam War and fabled for its utilized in the Vietnam War.