Aerospike engine

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Notion

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Science and technology

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What Wikipedia says

The aerospike engine is a type of rocket engine that maintains its aerodynamic efficiency across a wide range of altitudes. It belongs to the class of altitude compensating nozzle engines. Aerospike engines were proposed for many single-stage-to-orbit (SSTO) designs.

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

Image: NASA Marshall Space Flight Center (NASA-MSFC) [1], Papa Lima Whiskey (restoration credit), CC BY-SA 3.0, via Wikimedia Commons.