[BProckets] sugar formulae stability

[James Yawn]

donnie long wrote:

>Sleeter I believe stated this on dry ram mixture, the
>kno3 is melted and poured, out of the 100's I have
>made there have been no cato's.  donnie.
>  
>
Jimmy writes:  I also recall that David Sleeter was describing 
dry-rammed KN/SU.  While dry ramming is standard for BP motors, it is 
not the optimal procedure for sugar propellants.

Rummaging through my shop awhile back, I found a film-can of 
recrystallized KN/SU that I had made 18 years prior.  Miraculously, I 
found the notebook where I had recorded that batch.  It performed 
exactly as the same as it had when freshly made, at least as far as I 
could tell by burning strands in open air and making a few model-rocket 
sized motors.

Sealed away from air, it keeps quite well.  Exposed to moist air, it 
turns into goo rather quickly.

Jimmy Yawn
jyawn at sfcc.net
www.jamesyawn.com