Initial testing of the MARC-R-282 ramjet engine
has been completed to define the ramcombustor geometry, the solid fuel formulation, the fuel valve and injector design, and to verify assumed levels of engine performance.
Successful demonstration of the dual-mode ramjet engine
integrated with a variable geometry inlet and exhaust nozzle sets the stage for future turbine-based, combined-cycle propulsion and flight demonstration opportunities," said Cal DeFreese, program manager, Falcon Combined-Cycle Engine Technology (FaCET), Pratt & Whitney Rocketdyne.
Aerojet will produce 19 MARC R282 ramjet engines
under this contract over the next 18 months.
The successful flight was the third in a series intended to validate the operation of the ramjet engine
and target vehicle.
The Vesta (see title picture) programme is aimed at studying new ramjet engines
to power the Asmpa--a further development that will be introduced on the Rafale in 2008.
Conceived in 1946 and scarcely more than a frame with a rotor and tail, the XH-20 was powered by two ramjet engines
that, like the aircraft, were developed by James S.
Such heating would destroy turbine or ramjet engines
constructed of any known material.
Scramjets are ramjet engines
in which the air flowing through the engine remains supersonic, hence the name, which stands for ``supersonic combustion ramjet.
The company's concept calls for its space plane to take off horizontally, using a mix of air and liquid hydrogen to power the ramjet engines
The space plane would take off horizontally, using a mix of air and liquid hydrogen to power the ramjet engines
Marquardt founds the company, specializing in ramjet engines
During the four-year program, Boeing will test fly eleven air vehicles, eight of which will be powered by dual- combustion ramjet engines
and will fly at speeds of up to Mach 6.