In a world dominated by sleek jets and ultra-efficient turboprops, the roar of piston-engine propellers sounds like a blast from the past. However, some of these thunderous machines still roam the ...

The first recognizable internal combustion engine was developed by Nikolaus Otto in 1861. Since then, the gasoline-powered engine has evolved immensely. However, the principles that underlie how ...

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 ...