derekroolz Posted June 29, 2009 Posted June 29, 2009 Ok, if you have trouble lighting your rcandny quickly. Try getting a little steel wool and shred it up then put into the rcandy the mix (if it is still in powder form.) I havent tried this on the recrystlized mix but it should work. if anyone tries it on there recrystalized mix let me know how it went, all feedback is fine and i will help if you need it on my way. Anyone else who has there own makeshift way or knows a quick cost effective way of lighting the Rcandy wuickly Post it HERE!!!
Mumbles Posted June 30, 2009 Posted June 30, 2009 Visco fuse with some BP/metal slurry on one end. Honestly, I've never had visco fail. I cut it at an angle, and push it all the way into the core, so there is a bit extra spray.
derekroolz Posted June 30, 2009 Author Posted June 30, 2009 Visco fuse with some BP/metal slurry on one end. Honestly, I've never had visco fail. I cut it at an angle, and push it all the way into the core, so there is a bit extra spray. Now when you say a metal slurry, What is that composed of?
Mumbles Posted June 30, 2009 Posted June 30, 2009 BP - 90-95 partsMetal - 5-10 partsEnough NC lacquer to make a slurry. More or less any metal that finds any use in pyro will work (save for very coarse Ti from salutes). Glitter Al, MgAl, flake Al, Fineish titanium, Zirconium, silicon, antimony trisulfide, hafnium, boron, medium flitter Al. They're all going to work.
firetech Posted June 30, 2009 Posted June 30, 2009 Are you talking about use as an ignitor or for quick ignition in general?I will assume you are using a inhibited or uninhibited core burning grain, in which case visco should work fine every time. The sparks from the fuse are much hotter than necessary to ignite the rcandy. You can also prime as necessary like Mumbles said. Any torch should get it lit pretty quickly out in the open.
derekroolz Posted June 30, 2009 Author Posted June 30, 2009 Are you talking about use as an ignitor or for quick ignition in general?I will assume you are using a inhibited or uninhibited core burning grain, in which case visco should work fine every time. The sparks from the fuse are much hotter than necessary to ignite the rcandy. You can also prime as necessary like Mumbles said. Any torch should get it lit pretty quickly out in the open. Both...stuff you can add to your mix or stuff you use in the actually ignition of the rocket or mix itslef(The information isnt for me it is for those who need the help)
Miech Posted June 30, 2009 Posted June 30, 2009 In model rocketry the core of a candy rocket is often filled with coarse BP. This has the advantage of setting the whole core on fire in a matter of milliseconds, thus improving initial thrust. Don't use too fine BP, something like 3FA is quick enough. Don't store the rockets while primed with BP, candy propellant will attract some moisture and wet the BP, making the rocket totally useless.
firetech Posted June 30, 2009 Posted June 30, 2009 Depending on how good your ignitor is, it make take a second for the motor to warm up and reach pressure. If you haven't already, use head-end ignition. If you are using visco instead of an electric ignitor, wrap the visco in non-flammable tape thats as long as the core, leaving only about 1 cm of visco exposed near the end of the core. Check out jamesyawn.com and nakka-rocketry.net. Were not here to spoon-feed you. Those site should handle just about all of your questions. You can even email Jimmy and Richard personally, they have always gotten back to me.
derekroolz Posted June 30, 2009 Author Posted June 30, 2009 In model rocketry the core of a candy rocket is often filled with coarse BP. This has the advantage of setting the whole core on fire in a matter of milliseconds, thus improving initial thrust. Don't use too fine BP, something like 3FA is quick enough. Don't store the rockets while primed with BP, candy propellant will attract some moisture and wet the BP, making the rocket totally useless. well a great way to perserve your rockets from moisture would be to put it in a cointainer that can be sealed and put salt in the container
TheSidewinder Posted June 30, 2009 Posted June 30, 2009 Rice would be a better choice than Salt. An actual dessicant packet would be even better. And while we're at it, chill out with your replies. One of the two Admins here has already told you you're walking thin ice. Piss the other one off and you're out of here.
derekroolz Posted June 30, 2009 Author Posted June 30, 2009 Rice would be a better choice than Salt. An actual dessicant packet would be even better. And while we're at it, chill out with your replies. One of the two Admins here has already told you you're walking thin ice. Piss the other one off and you're out of here. wow this place is way to strict man this is forum were we discuss the info not say here this what we should talk about and then give eachother websites to dig through for hours to find the right information
qwezxc12 Posted July 1, 2009 Posted July 1, 2009 (edited) BP - 90-95 partsMetal - 5-10 partsEnough NC lacquer to make a slurry. More or less any metal that finds any use in pyro will work (save for very coarse Ti from salutes). Glitter Al, MgAl, flake Al, Fineish titanium, Zirconium, silicon, antimony trisulfide, hafnium, boron, medium flitter Al. They're all going to work. Hafnium?!? ... I've been looking for a use for that 5kg stash of -325 mesh superconductive tungsten-rhenium alloy flake I scored on eBay... do you think it would work? Edited July 1, 2009 by qwezxc12
TheSidewinder Posted July 1, 2009 Posted July 1, 2009 wow this place is way to strict man this is forum were we discuss the info not say here this what we should talk about and then give eachother websites to dig through for hours to find the right information No, this is a Forum where members follow the rules, act in a mature and responsible manner, and don't do this: "GOD DAMN I AM NOT THE ONE WHO NEEDS THE INFORMATION I JUST WANT IT TO BE HERE FOR QUICK ACCESS FOR OTHERS WHO NEED IT. 2angry.gif", or they find themselves shown the door. You're free to reply to firetech and offer rebuttal to what he said, so long as you do so politely.
a_bab Posted July 2, 2009 Posted July 2, 2009 While on it, to avoid making a new thread just for that, would some 2 kgs of manganese metal (50 mesh) I can get be good for something, maybe for sparks generation?
Rogue Chemist Posted July 2, 2009 Posted July 2, 2009 (edited) Fine tungsten powder in BP makes an effect similar to that obtained from introducing some lumpy charcoal, when rolled into stars. However the sparks are smaller and not as bright giving an interesting effect. They also seem to fall slower. Lanthanide powders make some nice stars as well, but cannot have water present, and have a very short storage lifetime . Powdered mischmetal seems to give a great effect, and lasts much longer than pure lanthanide powders. Cerium seemed the best lanthanide to use with only mild oxidation. Lanthanum is far far too sensitive to oxidation. Edited July 2, 2009 by Rogue Chemist
derekroolz Posted July 3, 2009 Author Posted July 3, 2009 While on it, to avoid making a new thread just for that, would some 2 kgs of manganese metal (50 mesh) I can get be good for something, maybe for sparks generation? that could definatley give a good sparkler effect if you were to mix a little bit for the end of the rocket.... definatley would give a nice finish
firetech Posted July 4, 2009 Posted July 4, 2009 Titanium is most commonly used in rcandy fuels for a sparkler effect.
derekroolz Posted July 4, 2009 Author Posted July 4, 2009 Titanium is most commonly used in rcandy fuels for a sparkler effect. yes it is incredibly well for a sparkler effect but how bout the eas to light it
Ventsi Posted July 4, 2009 Posted July 4, 2009 Just as easy to light unless you have something like 30% in there . Usually 1-5% seems to be the standart for a nice brilliant sparky tail.
firetech Posted July 4, 2009 Posted July 4, 2009 I tried spherical Ti and had decent results. I think flake would drastically improve the performance. I used roughly 5%.
derekroolz Posted July 4, 2009 Author Posted July 4, 2009 Just as easy to light unless you have something like 30% in there . Usually 1-5% seems to be the standart for a nice brilliant sparky tail. Sounds great,thank you
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