This is a very simple helicopter model (about 25K polys). It is loosely based on a UH-60 Blackhawk, but I have added a few features to it, such as missiles on the side and a forward machine gun. The main/aft rotors do rotate on an extended (linear extrapolation) IPO curve. There is also smoke coming out of the back, although you may want to play with the particle settings.
The textures are procedural and basic. Like I said, it's a simple model.. but hopefully you can use it or improve it.