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fun explody stuff Answered

ive been working on several things lately and one of them being rocket engines (and bottle rockets) and also firecrackers the engines i have no problem with exept does anyone know how to make the shuttle srb fuel i know the chemicals but does anybody know where to get them (easily prefered kinda like kno3 is stump remover) and also how to you mix it do you grind them into eachother or do you just mix them and then with firecrackers mine never explode they just vent through the fuse hole how do i make it explode? and also helzapopins or crackler balls are those little balls just lifting powder?

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zofo300 (author)2007-02-21

ohhh easy just get some black powder from model rockets try to get the good on

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jtobako (author)2007-01-08

you need a pyro site, like roguesci.org and some time to read it.

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buildingteen (author)2007-01-08

i made it myself i need a better scale mine is analog i'm getting a digital one soon and im also making a ball mill out of lead shot (can u use marbles?) and a rock tumbler i am currently using a mortar and pestle.

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user

Your black powder is probably not high grade enough. Where did you get it?

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mattadams (author)2007-01-07

hi my name is matt my dad dose pro firework and if you get a thick metel tube and put flash or black or gun powder then put a small tube or fuse in to the bottom coming to the top.then put a disk of carboard on top of the powder. then put some thing on top of that (it will better id you put a cinder shape in it) then make sure the tube is staked it to the ground then light the fure and RUN the thing you put in it will go up!!!! and breath

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westfw (author)mattadams2007-01-07

Oh boy. A pipe bomb. The Police LOVE those.

Amateur rocketeers should avoid metal casings, with the possible exception of pre-made aluminum casings aimed at rocket experimentors.

The SRB fuel is PBAN, Ammonium Perchlorate, and Aluminum Powder. the PBAN is a curable liquid polymer, so things get mixed to a putty-like consistancy and then put in molds to cure. The formulation isn't particularly well suited to small rocket motors; too much aluminum (which burns OUTSIDE the motor and doesn't add propulsion performance unless you have a BIG motor.)

There's actually a bunch of active communities working on homemade rocket motors of various types. Amateur Rocketry is a reasonable starting point.

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dogsrcool2me (author)2007-01-07

What are you using in the fire crackers?

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