Radial Engine/Gnome Engine

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The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders "radiate" outward from a central crankcase like the spokes of a wheel. It resembles a stylized star when viewed from the front, and is called a "star engine" (German Sternmotor, French moteur en étoile) in some languages. The radial configuration was very commonly used for aircraft engines before turbine engines became predominant.