Although not actually a multirotor, this hover bike is built on a similar design that we use for all of our multirotor drones. Optimistically this could be in your garage by 2017. Although using this vehicle to travel on the road by then, maybe unrealistic, off-road use would definitely be possible. Of course, the first thing we would do is travel through an old growth forest at high speeds.
Will there soon be a hover bike in your garage?
