The Beast — Bob Maddox's Triple Pulsejet Go-Kart That Hits 90 MPH
Bob Maddox doesn't buy engines. He builds them — specifically, valveless pulse jet engines, the same type of propulsion that powered the German V-1 flying bomb in World War II. Then he straps them to things. 'The Beast' is his masterpiece: a go-kart frame fitted with three of his custom-built pulse jets, featuring instant start via injected propane and diesel, a full range of throttle control, and a top speed Bob has personally clocked at 90 mph while sitting approximately four inches off the ground with no roll cage and nothing between him and the asphalt but a helmet and decades of experience. The kart is the most advanced pulsejet-powered vehicle Maddox has built in a career spanning hundreds of jet engines — many of which he sells through maddoxjets.com to other people who apparently also want to strap jet engines to things. The ride video pulled 10.7 million views on YouTube, with 270K likes and 603K subscribers on his CrazyRocketman channel. The comment section is split evenly between people who want to buy one and people who think Bob is clinically insane. Both groups are probably right.
A man who hand-builds valveless pulse jet engines in his shop, straps three of them to a go-kart, and rides it to 90 mph on camera for 10.7 million viewers is operating at a level of redneck power innovation that most people can't even conceptualize. The fact that he also sells the engines commercially means this isn't a stunt — it's a business model.
| Fuel | Propane ignition, diesel sustain |
|---|---|
| Throttle | Full range, instant start |
| Published | February 12, 2022 |
| Top Speed | 90 mph |
| Engine Type | Triple valveless pulse jet |
| Youtube Likes | 270,000+ |
| Youtube Views | 10,724,092+ |
| Youtube Subscribers | 603,000+ |
