RC Sled Pulling
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That's actually a tiny little turbine engine. We have guys around here pulling the turbines from things like Apache helicopters, which are rated around 2000 hp in stock form and burn kerosene and sticking them on their Modified class pulling tractors. Sometimes 2 or 3 are used on the same chassis! When these guys get these engines/tractors dialed in correctly, few of the other tractors in their class can touch them. The fact someone actually engineered a working model that can fit in the palm of your hand is amazing!