Tom Clancy's EndWar: the evolution of helicopters
Just to pique your interest: the first ship design was scrapped because the chopper was supposed to be futuristic, but the actual ship it was based off of was canceled in 2004. The second was originally a fairly standard, but cool, helicopter. It also failed the futuristic expectations of the EndWar team and designed a new ship that is a mish-mash of different attack choppers. Cool stuff, for those who love them flyin' things.