scram jet


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scram jet

A supersonic combustion ramjet. An engine in which the air is not compressed below Mach 1, which prevents dissociation (i.e., the breakdown of oxygen, nitrogen, and carbon molecules into individual atoms). The air is practically compressed and the fuel is burned at supersonic speeds, permitting operation in the hypersonic range. Scram operations begin at about Mach 5 to Mach 7.
References in periodicals archive ?
Caption: Ryan Helbach, a Hypersonic Research Engineer, holds a flight test model in Hypersonic Combustion Research Cell 22, used to research SCRAM jet technology at the Air Force Research Laboratory at Wright Patterson Air Force Base in Dayton, Ohio, Jul 21, 2016.
ME: FIRING UP THE ENGINE HAS BEEN DESCRIBED AS "LIGHTING A MATCH IN A HURRICANE," HOW DOES ONE IGNITE A SCRAM JET ENGINE?