ramjet

noun
ram·​jet | \ ˈram-ˌjet How to pronounce ramjet (audio) \

Definition of ramjet

: a jet engine that consists essentially of a hollow tube without mechanical components and depends on the aircraft's speed of flight to compress the air which is supplied to a burner from which hot gases are discharged rearward

Examples of ramjet in a Sentence

Recent Examples on the Web At high-speed, the engine works like a ramjet, ramming increased amounts of air through the engine chamber to create much, much more thrust. Kyle Mizokami, Popular Mechanics, 13 Sep. 2021 Such systems use a standard jet engine for launch and landing and to build enough speed in flight to feed air into a second turbine—known as a ramjet or scramjet—which produces more power, but requires high-speed air flow in order to ignite. J. George Gorant, Robb Report, 19 Aug. 2021 These have descended from the idea of the turbojet, and on the family tree of jet propulsion, the turbojet and ramjet are something like cousins. Caroline Delbert, Popular Mechanics, 2 Dec. 2020 The ramjet led to the scramjet, which was designed to go as much as 15 times the speed of sound. Caroline Delbert, Popular Mechanics, 2 Dec. 2020 Its unique trick involved the ability to transition from turbojet engine to turbo-ramjet engine in flight, sucking in vast amounts of oxygen-rich air and burning it to drastically increase engine output. Kyle Mizokami, Popular Mechanics, 10 Mar. 2021 Adding an air-breathing ramjet in place of a traditional, solid-fuel rocket motor can help. David Axe, Forbes, 21 May 2021 In addition to providing speed, a ramjet also ensures that a missile doesn’t start slowing down at maximum range. Kyle Mizokami, Popular Mechanics, 10 Feb. 2021 The idea is a decades-old theoretical variation on a scramjet, itself a variation on the ramjet, building on generations of work on high-speed flight. Caroline Delbert, Popular Mechanics, 2 Dec. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ramjet.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of ramjet

1942, in the meaning defined above

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Ramism

ramjet

ramjet engine

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Cite this Entry

“Ramjet.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ramjet. Accessed 19 Jan. 2022.

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Britannica.com: Encyclopedia article about ramjet

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