X engine

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Notion

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Beliefs and thought

In collections

Nobody has pulled it yet.

What Wikipedia says

An X engine is a piston engine with four banks of cylinders around a common crankshaft, such that the cylinders form an "X" shape when viewed front-on.

Excerpt from the Wikipedia article “X engine”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: LM Woolson, CC BY-SA 3.0, via Wikimedia Commons.