How do these people fly over 40 miles away?

[fastfed]

I get the power, but how can he stay connected to it? we have problems doing a couple miles, this guy is going over 40 miles

 

[Morgas Resnak]

Too long for me to watch, but not anything cheap, and hand thrown for a launch.

 

[fastfed]

Im just wondering how they can still connect to the RC from a controller at that distance, I get that its high up, but still

 

[Mako79]

He is in a plane flying behind it using some ebay windsurfers

 

[Mark The Droner]

A member on this site did 20 miles at low altitude. So 40 miles above the clouds doesn't seem so far fetched to me ...

 

[N017RW]

The video contains this info:

"OSD and autopilot is Rangevideo RVOSD version 5, Airplane is Winrider Queen bee(2.5m Flying wing with solar cells), 20'000mAh batteries, 1.2Ghz 1500mW video Tx, Radio is FRsky 2.4Ghz 2 X V8R7SP and 2W WIFI amplifier, antenna for RC is patch 14dBi, for video Rx is yagi 13dBi."