- The Bell UH-1 Iroquois, commonly (or officially in the USMC) known as the "Huey", is a multi-purpose helicopter, famous for its use in the Category:Vietnam War.
The original (Model 204) received a larger cabin (Model 205). The Model 210 is an upgraded/rebuilt older Model 205, the Model 214 is a Model 205 with more power.
In the late 1960's a twin-engined Huey appeared, the Model 212. A Model 212 with a four-bladed rotor system was developed in the late 1970's and is known as Model 412. Both of these twin-engined versions are known as Twin Huey
Bell 204 "Huey" 
- Military designation Bell 204: UH-1 A-C, E/F, K-M, P,V
Bell 205, 210 "Huey" 
- Military designation Bell 205: UH-1D, UH-1H and UH-1V
US Army 
UH-1D in Vietnam