Dont you have to have a license to legally pack rocket engines yourself? I think someone told me you do a long time ago, but I never found out if it was true or not.
black powder rocket anyone??
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Fnord
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eh.. figures. If its entertaining and dangerous its against the law
Dont you have to have a license to legally pack rocket engines yourself? I think someone told me you do a long time ago, but I never found out if it was true or not.
Dont you have to have a license to legally pack rocket engines yourself? I think someone told me you do a long time ago, but I never found out if it was true or not.
Ok, in case anyone is wondering, Fe203 is indeed a catalyst. You are right that it doesn't decompose, but it doesn't have to to be a catalyst. It would only have to decompose if you wanted it to be an oxidizer, which is what happens with thermite. It works admirably as burn rate catalyst, it can increase burn rate 50% or more at high pressure for KN03/sugar!
KN03/sugar is a lot safer for large motors, but for ease of manufacturing at small scale, bp is better. You can pack powdered KNO3/sugar into paper casings if you want, but it's weaker than bp that way. Although, the ISP of the sugar fuel is indeed 120 or so compared to 80-ish for black powder.
Ammonium nitrate is crap. It sucks as a fuel, and it's too hard to convert it into potassium or sodium nitrate to be worth the bother. Other than the internet, I think the best place to look is for stump remover at a big chain hardware store/ home improvement center.
KN03/sugar is a lot safer for large motors, but for ease of manufacturing at small scale, bp is better. You can pack powdered KNO3/sugar into paper casings if you want, but it's weaker than bp that way. Although, the ISP of the sugar fuel is indeed 120 or so compared to 80-ish for black powder.
Ammonium nitrate is crap. It sucks as a fuel, and it's too hard to convert it into potassium or sodium nitrate to be worth the bother. Other than the internet, I think the best place to look is for stump remover at a big chain hardware store/ home improvement center.
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 3:17 pm, edited 1 time in total.
Well, kudos on the conversion process! I'd like to hear how you do it. I've tried making sodium nitrate using NH3NO4 and KOH, but since all the compounds involved were very water-soluble, I could seperate them. How do you dry the KNO3 when you are done?
Actually, iron oxide is pretty much universally acknowledged as a burnrate catalyst. Try these links; the guys who run these are some of the top sugar rocket builders on the internet:
Scott Fintel:
http://www.thefintels.com/aer/st98.htm
Richard Nakka:
http://members.aol.com/nonillion/burnrate.html
James Yawn:
http://www.jamesyawn.com/fe2o3/index.html
Actually, iron oxide is pretty much universally acknowledged as a burnrate catalyst. Try these links; the guys who run these are some of the top sugar rocket builders on the internet:
Scott Fintel:
http://www.thefintels.com/aer/st98.htm
Richard Nakka:
http://members.aol.com/nonillion/burnrate.html
James Yawn:
http://www.jamesyawn.com/fe2o3/index.html
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SpudBlaster15
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Last edited by SpudBlaster15 on Wed Jul 14, 2021 3:17 pm, edited 1 time in total.
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BC Pneumatics
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NH4NO3 is fairly hard for some to get as well, for fear of terrorism 
<a href="http://www.bcarms.com/"><img src="http://www.bcarms.com/images/store_logo.png" border="0"> </a>
@Spudblaster: I don't know why you don't get any changes. Where do you get your iron oxide? Do you melt your sugar propelant, or pack it as a dry powder? I don't think that should effect it, but it might.
Ok, so you're using a precipitation method instead using KOH and letting the ammonia boil off. Makes sense. Do you know what percentage yeild you get?
@BC: I live in a farming area, and I can pick up 50lbs sacks of the stuff for pretty cheap. Not very good quality, and of course it's hydrated.
Ok, so you're using a precipitation method instead using KOH and letting the ammonia boil off. Makes sense. Do you know what percentage yeild you get?
@BC: I live in a farming area, and I can pick up 50lbs sacks of the stuff for pretty cheap. Not very good quality, and of course it's hydrated.
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BC Pneumatics
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Yeah, living in Ca has very few advantages, but access to fertilizers is one of them.
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size G motors and under you are aloud to pack if you do not have a license_Fnord wrote:eh.. figures. If its entertaining and dangerous its against the law
Dont you have to have a license to legally pack rocket engines yourself? I think someone told me you do a long time ago, but I never found out if it was true or not.
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SpudBlaster15
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