It's not gas turbine powered, rather using a remote controlled electric fan to buzz around. The fan is powerful enough to move the scooter and the kid, believe it or not. For a homebrew build, the end result even looks very neat.
For those who consider the kids' version a bit meek, Furze says he's building a faster, adult-sized version – complete with gas turbine power from junkyard turbocharger origins. Given the chance to ride that one, we'd strap on our helmets very securely, and it wouldn't be a bad idea to wear one riding the electric version, either.