04-10-2019, 03:33 AM
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Master Modeler
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Join Date: Jan 2009
Location: Fairbanks, Alaska
Posts: 6,507
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Quote:
Originally Posted by tbzep
Is the A10 nozzle eroded? That would significantly lower thrust.
Maybe some impurity got into the BP during the motor making process and lowered the thrust.
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If a M.E.S.S. form submission is in order here, that would be well worth inspecting the motor for. That happened with an Omega of yours once, if memory serves (where the clay of one of the stages' D12 nozzles asymmetrically eroded, making the rocket pitch over under power and hit the ground hard--you even caught it on camera too, I think). Even perfectly symmetrical erosion of a clay nozzle (as unlikely as such an occurrence would be) would drastically reduce the motor's thrust, regardless of the motor's size and rated thrust-time curve.
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