The mission's original launch date of October 29, 1983 was scrubbed due to concerns with the exhaust nozzle on the right solid rocket booster ( SRB ).
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Jet noise is reduced with chevrons, sawtooth patterns on the exhaust nozzles, on the Rolls-Royce Trent 1000 and General Electric GEnx engines used on the Boeing 787.
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The expanding flow in the diverging section caused a forward thrust force on the exhaust nozzle, its 29 % contribution to the overall propulsion system thrust at cruise.
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The 109-558 was capable of propelling an Hs 117 at, with throttle control by sliding valves in the exhaust nozzle, operated by a servomotor controlled by a Mach sensor.
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The Su-37 boasts " vectored thrust, " which means the exhaust nozzles from its engines can be swiveled around up to 15 degrees up or down for quick maneuverability.
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Brown said, " and then the rest of the game is making sure all the details are inside the tent _ things like controls, exhaust nozzles and inlets ."
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The exhaust nozzle forked in two at the end of the turbojet engine and ended in two auxiliary combustion chambers located on the trailing edges of the circular wing.
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A routine, post-flight inspection of the right booster rocket revealed an unusual pitting and 60 grooves on the inner surface of the carbon insulation that lines the bell-shaped exhaust nozzle.
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The variable intake features required to meet all these requirements consisted of front and rear ramps, a dump door, an auxiliary inlet and a ramp bleed to the exhaust nozzle.
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Richard Parker, an investigator for the National Transportation Safety Board, said one of the pieces, about the size of a dishwasher, was an exhaust nozzle from one of the four engines.
