I ran the motor through SRM a few times playing around with
some of the numbers mostly because of
the switch from a Sorbitol based propellant to Dextrose based. Ultimately the only change I'm making is the
change in sugar type. This has a few
effects on the motor, all relatively minor.
The overall burn time of the motor is reduced by about 1/2 a second,
average thrust goes up a bit, and the MEOP goes up to 1200 psi from 1050
psi. The retention screws are designed
to sheer at 1800 psi so the design safety factor is still a fairly conservative
1.5.
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