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A ramjet airplane engine designed for hypersonic flight that burns fuel in the supersonic airstream produced by the plane.


a. a type of ramjet in which the forward motion of the craft forces oxygen to mix with fuel (usually hydrogen) at supersonic speeds within a duct in the engine
b. an aircraft powered by such an engine
c. (as modifier): scramjet technology.
[C20: from s(upersonic) + c(ombustion) + ramjet]



a ramjet engine in which the flow through the combustor itself is supersonic.
[1965–70; s(upersonic)c(ombustion)ramjet]
References in periodicals archive ?
to transition between supersonic and hypersonic flight, like scramjet.
Between 2010 and 2013, the laboratory conducted several hypersonic flights with the X-51 Waverider, an unmanned scramjet aircraft jointly developed by AFRL, NASA, DARPA, Boeing and Pratt and Whitney Rocketdyne--now Aerojet Rocketdyne--Mercier said.
The scramjet engines help reduce launch costs by cutting down on the amount of oxidiser which needs to be carried along with the fuel.
This study involves the comparison of scramjet inlet performances, which is specifically designed for the Mach number of 10, under different flight regimes.
And, then, the residence time of air within the scramjet combustor is typically on the order of one millisecond when 6 < Ma < 8 [3].
The Kholod was one of the fastest machines ever built and the first ever scramjet, a type of ramjet airbreathing jet engine propelled by cryogenically cooled liquid hydrogen combusted in supersonic airflow to complete a successful test flight, back in 1991, CNet reported.
After separating from the booster, the cruiser's scramjet engine lit and accelerated the vehicle to Mach 5.
Being one of the Big Kids, Jack is looked upon as a leader and enjoys his carefree life immensely--that is, until the day his bicycle, Scramjet, is stolen by Jubilee, someone who has always been avoided because she is a girl.
Hypersonic speeds are high supersonic, usually referring to Mach five and above, which can usually only be generated using advanced propulsion technology such as ramjet or scramjet engines.
PSAAP researchers use supercomputers to model the physical complexities of the hypersonic environment-specifically how fuel and air flow through a hypersonic aircraft engine known as a scramjet engine.
It is unfortunate that a problem with this subsystem caused a termination before we could light the scramjet engine,' said Charlie Brink, X-51A program manager for Air Force Research Laboratory.
Charlie Brink, of the Air Force Research Laboratory in Ohio, said this "caused a termination before we could light the scramjet engine".