PyroMedia Posted September 14, 2008 Posted September 14, 2008 (edited) Name of composition: PM's Lift Composition Type: Rocket Propellant/Lift Powder Creator: PyroMedia The Composition: 75 Kno310 Sulfur5 charcoal5 600 mesh dark aluminum1 Boric acid Any Precautions/Incompatabilities: Contains sulfur, stay away from chlorates Precedure/Preparation:Simply make the BP as a greenmix (dont mill it, it will cause CATOS) Edited September 14, 2008 by PyroMedia
Richtee Posted September 15, 2008 Posted September 15, 2008 Name of composition: PM's Lift Composition Type: Rocket Propellant/Lift Powder Creator: PyroMedia The Composition: 75 Kno310 Sulfur5 charcoal5 600 mesh dark aluminum1 Boric acid <Scratching head>What's the advantage over a decent BP here? At the cost of the dark especially? I'd not consider it for a lift at least, but I'm lacking in the rocketry end of things.
PyroMedia Posted September 15, 2008 Author Posted September 15, 2008 its good for people without ball mills, as you can greenmix it, more thrust for rockets (tried it on a scale compared with milled bp)
Miech Posted September 21, 2008 Posted September 21, 2008 The boric acid doesn't have to be dissolved to neutralize bases. But when mixed in a mortar and pestle I doubt if it is divided enough to be really effective.
Mumbles Posted September 21, 2008 Posted September 21, 2008 It has a limited effect when added in dry. It is significantly more effective when added as a solution. If you're going to granulate it, I'd use a solution of it. If the comp is going to be kept dry, the mixture isn't going to react very much, and dry stuff will likely keep it in check for a few months.
PyroMedia Posted September 22, 2008 Author Posted September 22, 2008 Yes, by dark i mean flake, this is quite a powerful propellant, its pretty much really slow flash. ive made a couple 1 lb rockets with it and they work well.
FrKoNaLeaSh1010 Posted September 22, 2008 Posted September 22, 2008 It is standard BP with 5 parts aluminum added. If anything it is pretty much BP not a slow flash....there is way too little aluminum to consider it an actual flash. I use this comp all the time although I switch the metal up. I just take my fast bp and add 5-7 parts of coarser metal (usually -325 spherical aluminum, or -20 mesh iron, or -20mesh aluminum). Although I do that to achieve a tail. I would assume the dark flake just makes it burn a little hotter, change the color of flame slightly whitish and doesnt make a tail but have you actually compared it to a BP rocket motor and noticed a difference in speed?
Mumbles Posted September 23, 2008 Posted September 23, 2008 I think you'd be surprised what a big difference 5 parts of dark Al can make in burn speed.
Seymour Posted October 23, 2008 Posted October 23, 2008 This composition reminds me of a burst mix I made once, it being a hybrid of Nitrate flash and Black powder. Once it was used as lift and the result was a rather loud, but not too unexpected ground salute. However it burned slower than BP unconfined. Moral of the story, adding reactive metals is a bit like making benzolift.
tentacles Posted October 23, 2008 Posted October 23, 2008 Moral of the story, adding reactive metals is a bit like making benzolift. But FAR less safe. Benzolift, once made, is reasonably insensitive to shocks and friction.
PRANAB Posted March 24, 2020 Posted March 24, 2020 (edited) Name of composition: PM's Lift Composition Type: Rocket Propellant/Lift Powder Creator: PyroMedia The Composition: 75 Kno310 Sulfur5 charcoal5 600 mesh dark aluminum1 Boric acid Any Precautions/Incompatabilities: Contains sulfur, stay away from chlorates Precedure/Preparation:Simply make the BP as a greenmix (dont mill it, it will cause CATOS) Can I use it into the mortar for lifting my ball shell?? Did anybody try it?? I am asking because I have not ball mill... Edited March 24, 2020 by PRANAB
SharkWhisperer Posted March 24, 2020 Posted March 24, 2020 Can I use it into the mortar for lifting my ball shell?? Did anybody try it?? I am asking because I have not ball mill...If your BP sucks to begin with, adding Al will only marginally add any useful power. Work on getting functional BP before considering adding in metals. You can probably make a crude but functional ball mill with free shit you can find at the garbage dump, and a little ingenuity. If you don't have decent BP, then you have nothing worth lifting into the sky anyways... There are no shortcuts.
Jimjimboom Posted May 24, 2020 Posted May 24, 2020 My first ball mill was a plastic tub that i put A hole into the lid and attached a bolt! Then added what i wanted to mill to the plastic container screwed the lid on and put it in my drill! I had to sit there holding the drill for 60mins! But the bp was good!
Jimjimboom Posted May 24, 2020 Posted May 24, 2020 Definatly need a ball mill mate! Thos hobby is hard to do without 1! Like i said i used a round plastic tub with a bolt pushed thru the middle of the lid! Worked well untill the lid broke and i had bp go everywhere! So if you do it make sure you away from any ignition points/ electrical outlet!
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