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X-43A flight delayed.
Michael Braukus
Headquarters, Washington February 17, 2004 (Phone: 202/358-1979) Leslie Williams Dryden Flight Research Center, Calif. (Phone: 661/276-3893) Keith Henry Langley Research Center, Hampton, Va. (Phone: 757/864-6120) RELEASE: 04-050 X-43A FLIGHT DELAYED The flight of NASA's X-43A has been postponed, due to an incident with the rudder actuator on the booster. On Feb 11, during setup at Orbital Sciences Corporation for testing of the rudder and its actuator, an anomaly caused the actuator to go hard over and hit its mechanical stop, exceeding the torque to which the units were qualified. Although the actuator may still function nominally, it will have to be replaced. A joint government/contractor incident investigation is under way to determine the cause and corrective actions. Prior to this incident, the program was considering a delay of the flight to late March to retune the booster autopilot, to optimize its performance based on the latest test data. With the requirement for a replacement actuator, the two activities will now be done in parallel. Planning is now focused on a late-March to early-April flight. The X-43A is a high-risk, high-payoff flight research program. Designed to fly at seven and ten times the speed of sound, and use scramjet engines instead of traditional rocket power, the small, 12-foot-long X-43A could represent a major leap forward toward the goal of providing faster, more reliable and less expensive access to space. The stack, consisting of the X-43A and its modified Pegasus booster, will be air-launched by NASA's B-52 carrier aircraft at 40,000 feet altitude. The booster will accelerate the experimental vehicle to Mach 7 at approximately 95,000 feet altitude. At booster burnout, the X-43 will separate and fly under its own power on a preprogrammed path. The flight will take place over a restricted Navy Pacific Ocean range. -end- -- ------------------- Jacques :-) Editor: www.spacepatches.info |
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