Always thought this would be a good idea, but thinking and doing are two different things altogether as a casual place at my own life will testify. But the DARPA heavy-lift challenge has thrown up any number of beautiful innovations and this amongst them.
What has been encouraging too is that invariably innovators have drawn upon the possibilities of electrical motors or jet-turbines, eschewing IC engines altogether so far as I can see; even the relatively compact rotary engines that are produced here and do power aerial drones worldwide requiring range or endurance.
And that is probably the key, not much of either being required for this challenge, instead a requirement to move heavy stuff a short distance across what would in reality be a battlefield of sorts.
This one though flies a couple of aircraft in circles so as to put the line connecting them under tension, whereupon they both climb in order to raise the payload that is fixed to the vertical line to the ground. Thereafter they are co-ordinated so they can move in one direction or another.
It is all software driven and way beyond my pay grade, so well done!









