Thursday, 21 August 2008




NASA will soon test a hypersonic aircraft crossing at Mach 7 and using turbojets operating at Mach 2.8, through a system of MHD hump. The air déboulant hypersonic Mach 7 is idling at supersonic speed (just under Mach 3) at the entrance of the engines.

Dr. Isaiah Blankson, plasma physicist and an expert on hypersonic NASA, said that such a system could remove 30 to 40% of the kinetic energy of air, thereby reducing the air speed of 50 to 75 %. The principle of bridging MHD also allows re-use elsewhere energy levied at the deceleration from the air, for example to supply various systems such as an accelerator or ionisateurs MHD output engines.

Studies will be undertaken until 2009 at Glenn Research Center in Cleveland, Ohio, on the basis of new ionisateurs high-voltage pulse offering a yield of ionization 40% recently developed by NASA.