The Air Alien Green Helicopter is a zero-emissions aircraft straight from the future. The space-age chopper has two tanks full of hydrogen and oxygen that mix together to generate electricity of power the engine.
The aircraft also has two giant propellers with magnetic rings that rotate in opposite directions, making the eco-friendly flight completely silent. The Air Alien also has a door at the bottom of the chopper that you stand in while it elevates you up into the helicopter, which will definitely make you feel like Captain Kirk.
The Air Alien Green Helicopter is an Eco-Friendly Chopper
Rose Nazarali — January 31, 2010 — Autos
References: tuvie & ecofriend.org