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Types of Black Powder


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#1 sizzle

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Posted 19 November 2005 - 10:01 PM

I've recently read a film-canister aerial salute guide and it says for the mortar you need 5g of 3Fg Black Powder to lift it, what does 3Fg mean and will 15:3:2 or 6:3:1 Black Powder be good enough to lift it?
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#2 JamesH

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Posted 19 November 2005 - 10:21 PM

The 3Fg represents the grain size of pressed and corned black powder, in this case its 20-50 mesh. The formula is constant at 75/15/10. There is also an FA system which is slightly different, but the basic black powder is still 75/15/10.

Heres an article for you to read regarding these grading systems.
http://members.aol.c...aqs/bptypes.htm

Hope that's any help to you.
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#3 fishy1

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Posted 19 November 2005 - 10:22 PM

Fg means something about particle size, and i'd use 15:3:2, you'll need the power.


edit: james posted just before me.

Edited by fishy1, 19 November 2005 - 10:23 PM.





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