[AR] Re: Solid motor design challenge

  • From: roxanna Mason <rocketmaster.ken@xxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Mon, 1 Mar 2021 20:50:15 -0800

Does geometry matter like diameter, frontal area? As mentioned before on a
similar topic, I would configure such a beast as a gas generator.
If geometry didn't matter I think it can be done w/o too many issues.

Ken

On Mon, Mar 1, 2021 at 8:07 PM Dr Edward Jones <RocketPioneer@xxxxxxxxx>
wrote:

Suppose you were assigned to design a long-burn, low-thrust solid
propellant motor with these characteristics, what would be your grain
configuration, case type, and general formulation:

Burn time 10-min (600 sec)
Nominal thrust 40-lbf at sea level
Operational use <10,000-ft elevation

Would your grain design keep thrust within +/- 10% of nominal?


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