The lightweight Mosquito Helicopter concept by Cikaric Dragan, specifically designed for the Army to commute through difficult terrains, would have been perfect for the marauding caveman. No more multiple mile-long treks just for some fine tiger steak. You can even land this sucker right in the comfort of your own cave.
A series of levers and a computer control the orientation of the copter as it floats to your next kill. While this design won’t generate any really high speeds, it makes up for it in silent operation and excellent handling.
I am thinking about creating something similar to this. I like this design better then other once.