it is one of the largest drones we’ve ever seen. Able to lift 400 pounds (a Phantom 3 weighs 2.8 pounds) and can fly for eight hours, the SKYF drone is a nice piece of aeronautical engineering.

Here’s how it works. In our opinion, DJIhas long been the king of consumer drones.But while its Phantom series machines have always been impressive, they've also been more than a little on the ...