Brass Propellant Discs

6 responses to “Brass Propellant Discs”

1. 

   jurvetson

   Jan 15, 2012 at 5:19 pm

   this is what Erik’s brass propellant looked like in the mixing

   

   Tom cut the discs from some rejects (detonate too easily) from our propellant mixing party
   

   I need to make a BIG batch for the Q motor…. 10 grains the size of a Folger’s Coffee tin.

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2. 

   Erik Charlton

   Jan 15, 2012 at 5:36 pm

   Fantastic night!!

   Reply
3. 

   Chucil

   Jan 15, 2012 at 5:58 pm

   Cool!

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4. 

   rocketmavericks

   Jan 15, 2012 at 6:16 pm

   Actually, what I brought to dinner last night for entertainment was not from the brass
   propellant we mixed together in these photos, but a new experimental formulation I have been playing with that combines nanometric brass (Zn & Cu) with nanometric boron. The boron I hope will better regulate the burn rate of the straight brass seen above, and elminate its tendency to produce a shock wave and thus detonate as observed at you place in Half Moon Bay. Unfortunately, straight brass in a propellant seems to have a discontinuity in its burn rate characteristics as a function of pressure at about 400 PSI, making it unsuited for application in a rocket motor.

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5. 

   jurvetson

   Jan 15, 2012 at 11:25 pm

   Mais oui.

   RocketMav – in the Animal Motor Works tradition, we should call this one Brass Monkey…

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6. 

   scleroplex

   Jan 15, 2012 at 11:49 pm

   you would enjoy deepavali 🙂

   Reply