You take a go-kart. Add an insane engine. Then grab a camera and go for a rip. That’s what Rocketman Bob Maddox is doing in the video below. According to the description, he’s run this thing up to 90 miles per hour. It seems like it can go a hell of a lot faster than that too, if one were even crazier than crazy Bob.

Maddox owns Maddox Jets, which bills itself as the final word in pulsejets. And I have no reason to believe otherwise. The lead photo on the website is an old Jaguar sedan with a massive jet engine. Maddox also lists engine plans, sells complete engines, and engine kits. A completed engine runs anywhere from $875 up to $2,100 which… if honestly less than I would’ve guessed.

Bob has an interesting path to pulsejet salesman. He was an artist who went skydiving and fell into a fascination with speed. After that, he searched out info on jet engines, found the schematic for a pulsejet, and the rest is hot nasty jet-thrusted speed history.

Go check out his YouTube channel for way more videos and projects. This guy is fascinating.