If you look at aircraft from the Second World War or earlier, you'll notice that many of them have engines with large frontal areas and cylinders arranged about the propeller crankshaft. This a radial ...

Tether cars are a whole hobby based on tying a string to a tiny motor vehicle, attaching that string to a pole, and letting the car rip around a circle track at extreme speeds. We’ve covered them in ...

Not a rotary engine. A radial engine. Like you’d find in a vintage piston-powered aircraft. And moreover, it has GM LS1 DNA, too—inside the custom cylinder jugs and triangular crankcase are parts ...