Gunship-II (Android) app for $1.49

Gunship-3D is a simulation war game that features helicopters from the Vietnam War era. Enjoy flying Hueys and scout helicopters in various dangerous missions inspired by historic battles.

Available missions include Rescue Dawn, in which you try to rescue a downed helicopter behind enemy lines; Thunder Road, where you must escort a supply convoy that encounters enemy ambushes; and Search and Destroy, in which you fly a Bell-47 scout helicopter to discover and mark enemy positions with smoke grenades.+