[AR] Re: Solid motor design challenge

  • From: Peter Fairbrother <peter@xxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Wed, 3 Mar 2021 18:07:09 +0000

On 03/03/2021 17:41, Dr Edward Jones wrote:

Thanks Ken, and there remains a couple of issues with end-burning
Jetex-type propellant.

First, Jetex propellants require the unobtainable
2,4-dinitroresorcinol, and second, end burn grains--even Jetex--burn
into a concave, ever increasing area, making it impossible to keep
within the +/- 10% thrust demands.

Ideas on overcoming those?

Start with a deeply concave face? "ever increasing" is not infinite here afaict.

Peter

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