The Go-Bandit was the first attempt at a self-propelled chipper. It was basically a Might Bandit or Model 60 on a two axle, chain driven, 8 foam filled wheeled chassis. Wisconsin 30 or 35 hp gas engine. These were great for getting into back yard, provided there was a wide enough gate and clear passage. Some even came with a bagging capable chip chute. One could drive this thing into a suburban backyard and chip right into a wheeled trash can or bulk bag and then disperse the chips right back into the landscape. A great idea that never really caught on. I have one available.