humm the same princible would work for a jet powered pack .
just run a fuel line say 500 feet long to a moviable fuel tank.
and then fly for hours lol. humm better yet make a fuel tank that can fly behind you with a connecting hose humm how to fly the tank though?
cant be wing flight as the tank would need to go to fast a hela tank?
with a remote that tyed into the flyght controls of your jet pack?
a small tank say 200 gallons so a small copter just a tank with moter and blades and staplizer . be even small then a 1 man copter .
then you could jet lol