spaceships, Sam Brown on ArtStation at http://www.artstation.com/artwork/spaceships-a6f0847a-856c-49d2-a053-7716ee67f2d3
US boeing AH-64D Longbow Apache attack helicopter.
Hughes 500 by *NamelessFaithlessGod
Hirobo silent mini electric helicopters that travel at 100km/h (62 mph)
Hirobo unveils HX-1 unmanned electric helicopter, and promises a manned model
The "Loach" aka Little Bird that flew @ Treetop level to draw fire so "Cobra" aka "Snakes" hiding behind Mountains to come in and wiped out Targets
Futuristic Russian Helicopter (Hind inspired) - Polycount Forum
helicopter design 4 by goila cristian at Coroflot.com