ScienceAugust 3, 2026

ramjet

RAM-jet

Definition

A type of propulsion system or jet engine that uses the vehicle's forward motion to compress incoming air for combustion without the need for a mechanical compressor.

Etymology

The word is a portmanteau of 'ram' (referring to the 'ramming' of air into the engine due to high speed) and 'jet' (referring to the jet propulsion mechanism).

In the news

The article discusses the 'Bussard Ramjet,' a theoretical spacecraft that would scoop up hydrogen from interstellar space to use as fuel instead of carrying heavy propellant on board.

Interstellar Travel: the Birth of Fusion Drives

Read the full article ↗

Universe Today

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