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The Space Shuttle Main Engines operated at anything up to 109% during launch. They managed to squeeze extra performance out of them after the design was fixed and it was easier to rate them up to 109% than it was to re-calibrate everything else to the new 100%
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evil_andy Stick stick stick stick sticky sticky stick stick, Fri 1 May 2020, 10:20,
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*argues*
*loses*
*deletes thread*
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evil_andy Stick stick stick stick sticky sticky stick stick, Fri 1 May 2020, 11:23,
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Same thing for aero engines but for different reasons
100% on an aero engine is usually defined as the maximum continuous performance level. A higher performance level is available for take off, go-around and emergencies, but this is only for short-term usage.
This is why you'll notice the pilots throttle back shortly after take off.
(
wheresthefish Partly filled with wrong, Fri 1 May 2020, 15:39,
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