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Theatre > Pyrotechnics > Re: strange bur...
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Re: strange burst in consumer shell

by Mike Burge <frontier_marketing@[EMAIL PROTECTED] > Apr 10, 2008 at 01:57 AM

On Apr 10, 2:11=A0am, Mike Burge <frontier_market...@[EMAIL PROTECTED]
> wrote:
> . Most chinese shells are fine meal D on rice hulls and spread
> throughout the shell. The meal D burns very fast, but this is not
> black powder or flash or whistle. I recently found out that you can't
> use flash or whistle in consumer shells for the main burst even star
> shells because I guess the cpsc finds them too energetic even though
> they are not being used as ground salutes or rocket candle salutes,
> flash or whistle used to ignite the burst has to be less than 2% of
> the total composition. Standard high grade black box artillery shells
> usually have about 30 grams of comp, that means you could only use
> about half a gram of whistle or flash for ignition (not bad for
> ignition). Back to the point. I have found the new small cylinder and
> ball 1 to 1.5 inch shells have a different burst. Its about 1 to 3
> grams of burst (depending on shell size) and uncoated rice hulls with
> micro stars/crackle or very small round color stars for the larger
> shells. Even a premium 1.5 inch small festival ball in a blue box had
> this burst. All the bigger 1.75 shells have the meal coated rice hulls
> even the premium cylinder shells like excaliber and brothers smoke in
> mirrors. It was the well constructed, well fused small festival balls
> break that made me dissect one. It was a pretty good thump and spread
> but no flash. I carefully cut the shell open with a very sharp special
> blade, the walls were not that thick and it split in half easily.
> After removing the stars and uncoated rice hulls this is what I found.
>
> A very light grey fine powder w/o aluminum with tiny ****ny dark
> specks. It was a small amount 2 grams at the most. In an atmospheric
> open air burn test 100 mg was lit unconfined. It went up very fast but
> no flash, whistle is brighter than this stuff, it gave off a bit of an
> orangish flash I guess. It was slower than flash but much faster than
> BP w/o much smoke. Anybody know what this burst is? I wonder if H3 is
> legal as a main burst in consumer shells. The rice hulls are never
> coated with anything with this mix, the tiny little round 1 inch
> mighty mights use it also. These are all Chinese shells. ****mizu came
> up with H3, I think it should be legal for consumer shells as a main
> burst charge, but a lot of places say they only use black powder in
> consumer shells. This isnt BP, smells nothing like it, barely any
> smoke.

Actually I disagree with my previous post, H3 can get complicated and
react with certain comps, but this stuff I found in the small shells
burned fast

in order

ffffg
meal D
H3
mystery burst
slower end flash mixtures
Loose Whistle comp aka KClO4/benzo burst (this goes up quick as many
mid grade flash powders if made just right) not as fast as the more
energetic flashes
Salute grade fast flash/ using german dark aluminum.

With well made loose whistle 70/30 burst comp or medium to fast flash
powders, you cannot hear the echo of the comps rapid burn rate in your
head in open air tests. Its more of just bright output of energy and a
thump that sort of disorients you for a split sec. For fast bp, I can
still hear a very fast burn rate in my head like saying the sound
pffft, for slower bp its easy to repeat the sound in your head woosh.
I could faintly hear this mystery burst deflagrate, but it was like
the sound of striking a match as fast as you can before it even
ignites. A very fast scratch that was hard to remember, but definately
not close to the disorienting powers of fast whistle and flash powder
lit unconfined, a gram lit in the open standing 10 feet away will
still disorient me for just a split sec. Now a flash bang is intended
to do just that. So I know this burst is legal in 1.4g bc I dont think
it is as brissant as whistle and flash which can shatter plastic
shells instead of splitting them, but its a lot hotter than the bp
burst. Who knows it could just be watered down whistle mix, like
benzolift.
 




 12 Posts in Topic:
strange burst in consumer shell
Mike Burge <frontier_m  2008-04-09 23:11:53 
Re: strange burst in consumer shell
Mike Burge <frontier_m  2008-04-10 01:57:36 
Re: strange burst in consumer shell
"Lloyd E. Sponenburg  2008-04-10 07:58:18 
Re: strange burst in consumer shell
Mike Burge <frontier_m  2008-04-10 07:32:39 
Re: strange burst in consumer shell
"Lloyd E. Sponenburg  2008-04-10 09:40:19 
Re: strange burst in consumer shell
Mike Burge <frontier_m  2008-04-10 20:13:25 
Re: strange burst in consumer shell
missmonkeyshine@[EMAIL PR  2008-04-12 08:46:33 
Re: strange burst in consumer shell
Kelly <kellyjones1@[EM  2008-04-12 08:50:54 
Re: strange burst in consumer shell
"Lloyd E. Sponenburg  2008-04-14 08:22:51 
Re: strange burst in consumer shell
Mike Burge <frontier_m  2008-04-13 00:40:37 
Re: strange burst in consumer shell
Mike Burge <frontier_m  2008-04-15 18:01:45 
Re: strange burst in consumer shell
Mike Burge <frontier_m  2008-04-15 18:34:37 

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tan12V112 Wed Aug 20 10:27:34 CDT 2008.