It certainly has been discussed here before, albeit quite some time ago, but I
can't remember hearing any results. Not something I've personally tried, but
certainly worth experimenting with for large grains. The inclusion of fibrous
additives would need to not have any detrimental effect to achieving a high
measured:theoretical density ratio 1st and foremost, although those potential
issues could probably be overcome with creative processing.
Troy
-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> On Behalf
Of Uwe Klein
Sent: Wednesday, February 22, 2023 7:06 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Subject: Re: S-26.500 KNSB Sugar Shot test tomorrow
Am 22.02.23 um 03:11 schrieb BrianK ABQ:
They had a somewhat complicated grain structure. But candy propellant
has essentially no structural strength. It'll just crack. It's not
hard imaging a "fin" of propellant breaking off when the motor pressures up.
Even if there were no voids or such. My two cents.
What speaks against some fiber reinforcement ( cotton, cellulose, viscose ...
)
Uwe
--
Uwe Klein [mailto:uwe@xxxxxxxxxxxxxxxxxxx]
Habertwedt 1
D-24376 Groedersby b. Kappeln, GERMANY