Aircraft Engine IO-360-L2A Flat Type

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This Model: Lycoming IO-360-L2A on Cessna 172S.A flat engine, also known as a horizontally opposed engine, is a piston engine where the cylinders are located on either side of a central crankshaft. A flat engine should not be confused with the opposed-piston engine, in which each cylinder has two pistons sharing a central combustion chamber.The most common configuration of flat engines is the boxer engine, in which the pistons of each opposed pair of cylinders move inwards and outwards at the same time. Boxer engines are a type of flat engine; however, flat engines are not necessarily boxer engines. The other configuration is effectively a V engine with a 180-degree angle between the cylinder banks. Each pair of cylinders shares a single crankpin, so that as one piston moves inward, the other moves outward.The first flat engine was built in 1897 by Karl Benz. Flat engines have been used in aviation, motorcycle and automobile applications. They are now less common in cars than straight engines (for most sub-6 cylinder applications, although straight/inline 6 cylinder engines are widely used by German brands) and V engines (for engines with six or more cylinders). They are much more common in aircraft, where straight engines are a rarity and V engines have almost vanished except in historical aircraft. They have even replaced radial engines in many smaller installations.Referance Video by ERAU SpecialVFR: https://www.youtube.com/watch?v=gIdXLMVP6VU&t=638s