Different multirotors have different strengths and weaknesses, but they all share a common bottleneck: batteries. For its Yeair! quadcopter, a company called Airstier went around the problem by using good ol’ combustion engines.
Each of the quadcopter’s propellers has a 600w electric motor and a 1.6kW two-stroke engine. The result is a beastly machine that can carry 11lb. loads, go up to 62mph, fly as far as 43 miles and stay in the air for as long as 1 hour. A whole hour! Plus, in the event of a crash it’ll broadcast its whereabouts through smoke signals. Just kidding.
Did you see any electrical devices in Mad Max: Fury Road? Didn’t think so. There was no Batterytown either was there? Clearly gas holds the key to the future. Pledge at least ~$1500 (USD) on Kickstarter to receive a Yeair! quadcopter as a reward.