ramjet

3 ENTRIES FOUND:

ram·jet

noun \ˈram-ˌjet\

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

First Known Use of RAMJET

1942

ramjet

noun    (Concise Encyclopedia)

Air-breathing jet engine that operates with no major moving parts. It relies on the craft's forward motion to draw in air and on a specially shaped intake passage to compress the air for combustion. After fuel sprayed into the engine has been ignited, combustion is self-sustaining. As in other jet engines, forward thrust is obtained as a reaction to the rearward rush of hot exhaust gases. Ramjets work best at speeds of Mach 2 (twice the speed of sound) and higher. See also turbojet.

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