 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
| . |  |
. |
Sacramento CA (SPX) Nov 04, 2010 Aerojet, in conjunction with Lockheed Martin and NASA, successfully completed acceptance testing on the second R-4D development engine. The R-4D is the Aerojet engine that will be used on NASA's Orion crew exploration vehicle for the service module auxiliary propulsion. Eight R-4D engines, arranged in four pods of two each, will provide thrust for critical Orion maneuvers. The R-4D acceptance testing was a critical milestone in the Orion Service Module Auxiliary Propulsion Program. Completion of this testing demonstrates incremental progress and opens the way for the next phase of development testing. This testing achieved several firsts for the program including + flight design bimetallic (Columbium-Titanium) nozzle; + flight design valves (120V and 72.25 ohm coils); + flight-like pressure transducer; + validation of Orion-specific fabrication and test processes; + verification of Orion-specific tooling and special test equipment; + and demonstration of new processes that include the Aerojet Electric Discharge Machined (EDM) R-4D -11 injector. "It was very gratifying to see the fruits of a three-year design effort come together in a very successful engine test. It was a flawless demonstration of engineering and manufacturing expertise," said Aerojet Orion Program Manager Scott Jennings. Aerojet supplies the complete engine complement for the Orion Service Module including: 16 25-pound-thrust engines arranged in four pods providing RCS capability, eight 100-pound-thrust bipropellant engines arranged in four pods providing auxiliary axial thrust for system maneuvers and a 7,500-pound-thrust Orion main engine providing axial thrust for major position changes and deorbit. Additionally, Aerojet will supply 12 160-pound-thrust monopropellant engines for the Orion crew module reaction control system and the jettison motor that provides thrust needed to separate the launch abort system from the crew module in either a nominal or aborted launch scenario.
Share This Article With Planet Earth
Related Links Aerojet Rocket Science News at Space-Travel.Com
Witch's Brew Aids J-2X Engine Hardware AssemblyMarshall AL (SPX) Nov 02, 2010 Manufacturing of NASA's J-2X rocket engine includes a Halloween plunge into an icy cauldron of liquid nitrogen. Key components of the J-2X fuel turbopump, the rotating machinery that drives the liquid propellants into the engine, were assembled at Pratt and Whitney Rocketdyne's facility in Canoga Park, Calif., at temperature extremes to ensure the right fit. The cold pump volute - the stru ... read more |
|
|
| The content herein, unless otherwise known to be public domain, are Copyright 1995-2010 - SpaceDaily. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by SpaceDaily on any Web page published or hosted by SpaceDaily. Privacy Statement |
del.icio.us
Digg
Reddit
YahooMyWeb
Google
Facebook
