Yeair

(Source: digitaltrends.com)   If you buy a modern remote-controlled aircraft, it probably runs on batteries. This is because electric motors are far simpler and considerably more efficient than combustion engines — but they also have their own set of problems. The high weight and low energy density of a battery means even the best electric quadcopters can only stay aloft … [Read more...] about Gas-Powered Drone Yeair Offers 60 Minutes of Flight Time