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#1
January 23rd 07, 04:49 AM
posted to rec.aviation.piloting,sci.space.history,sci.space.shuttle
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Why does the shuttle throttle on ascent?
Danny Deger wrote:
While in the atmosphere the main engines are throttled back to reduce the maximum aerodynamic pressure. The grain in the SRB is also designed to have them go through a period of reduced thrust at about the same time. Not sure what you mean by "grain in the SRB", but the physical propellant shape is designed the reduce the thrust by approximately a third 50 seconds after lift-off to prevent overstressing the vehicle during maximum dynamic pressure. Hilton 
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#2
January 8th 07, 09:33 PM
posted to rec.aviation.piloting,sci.space.history,sci.space.shuttle
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Why does the shuttle throttle on ascent?
Danny Deger wrote:
Why does the shuttle throttle to 3 Gs on ascent? You would move like hell yourself if your ass was on fire. Bill Sullivan "What, me worry?" - Neuman
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