val77 Posted August 30, 2012 Posted August 30, 2012 (edited) by browsing youtube I found this video that shows us how worn are assembled czech military parachute flareit should be noted that these rockets are similar to parachute distress flareor this model has a flare that illuminates a 145000 candellas intended to be implemented by a single man and not a using a mortar (m120A1 military flares use a mortar to launch)I have not had opportunity to test but I find a website that sells all major components and one day I will try to reproduce this rocket the videohttp://www.youtube.com/watch?v=PeDlIErWgy8 Edited August 30, 2012 by val77
mabuse00 Posted August 30, 2012 Posted August 30, 2012 (edited) These flares where quite popular in the european football ultra szene, but I was told they got rare. At least the "white" NaNO3 based ones. Old Warsaw Pact stocks are dwindling. Here you can see them in action (not my video):http://www.youtube.c...h?v=YuD25izmDYs Edited August 30, 2012 by mabuse00
Short5 Posted August 30, 2012 Posted August 30, 2012 Interesting video. I have disassembled rocket flares but never that completely. You found a site that sells the components? Please share the link. I would love to buy some of those nozzles. They appear to be Bakelite material. It would appear that the fuel for the engine is smokeless powder based on it's appearance when it burned. Anyone have thoughts on that? I have had NC made from smokeless powder dry up in container and when I lit it, it burned very much like the fuel in the video. I wonder if one could dissolve smokeless powder in acetone then cast it into a Bates grain like they used in that engine. Thoughts? I have a handful of those flares as well as the marine rocket flares and some left over empty fired housings. It would be fun to reload them.
val77 Posted August 30, 2012 Author Posted August 30, 2012 yes is bright 145000 candellas There is also a version for flare pistol caliber 26,5 mm whitebut this one is better for illumination
val77 Posted August 30, 2012 Author Posted August 30, 2012 (edited) website www.pyrofire.euyou must go and seek illuminating rocket flares ROS 40 http://pyrofire.eu/detail.php?product=217 after you search pyrotechnic supplies parachute http://pyrofire.eu/detail.php?product=14 and finally you look ROS 40 rocket motor http://pyrofire.eu/detail.php?product=258 after just assemble it in a cardboard tube or aluminum and do not forget to add load and eject discs of cardboard like this in the video enjoy! Edited August 30, 2012 by val77
Potassiumchlorate Posted August 30, 2012 Posted August 30, 2012 Those Czechs don't have such stupid laws as we have in western Europe. Me likes
Short5 Posted August 30, 2012 Posted August 30, 2012 Wow, very cool site for ready made components. I can't imagine it would be feasible to receive an order in the U.S..
val77 Posted August 30, 2012 Author Posted August 30, 2012 yesbut I am curious to know what these compounds are super bright yellow illuminating flares
val77 Posted August 30, 2012 Author Posted August 30, 2012 sorry but this website don't ship in USA... sorry
Potassiumchlorate Posted August 30, 2012 Posted August 30, 2012 (edited) Wow, very cool site for ready made components. I can't imagine it would be feasible to receive an order in the U.S.. It's a very liberal country - liberal in the original meaning of the word. They are the last country in Europe with a right to carry a gun in self-defense too, as far as I know If their language weren't that hard to learn, I'd considering moving there. Edited August 30, 2012 by Potassiumchlorate
THEONE Posted August 31, 2012 Posted August 31, 2012 (edited) I wonder if one could dissolve smokeless powder in acetone then cast it into a Bates grain like they used in that engine. Thoughts? I have also speak for thise before but they told me that NC shrinks over the time... also when it drys from acetone it is very possible that it will live air bubbles into the grain....I have seen that some rockets used NC as a fuel, but i do not know howAlso NC has a very good isp, about 225 sec... I was thinking about nitrostarch, it is almost the same as NC, but i do not know their properties... Maybe it will better for rocket propellant than NC Edited August 31, 2012 by THEONE
Neruda Posted August 31, 2012 Posted August 31, 2012 Those Czechs don't have such stupid laws as we have in western Europe. Me likes for now wait some years and they'll have the same restrictions as all of us i bet that in the future it will be very difficult to buy any chemical if you don't run a laboratory
psyco_1322 Posted September 4, 2012 Posted September 4, 2012 Most composite flare motors have a strict shelf life, when they hit that date, they pretty much get thrown away. It looks like that site takes apart flares and sells each piece. The fuel for what ever reason, becomes unstable and the motors with blow up randomly. I know this from personal experience. I wouldn't buy any of those motors....but maybe some 45g Ti salutes with time fuse. A common used flare composition is NaNO3/Mg, something around 1:1, bound with IIRC polystyrene resin.
Short5 Posted September 4, 2012 Posted September 4, 2012 Most composite flare motors have a strict shelf life, when they hit that date, they pretty much get thrown away. It looks like that site takes apart flares and sells each piece. The fuel for what ever reason, becomes unstable and the motors with blow up randomly. I know this from personal experience. I wouldn't buy any of those motors....but maybe some 45g Ti salutes with time fuse. A common used flare composition is NaNO3/Mg, something around 1:1, bound with IIRC polystyrene resin.What kind of fuel is used? I have never heard of these flares blowing up, what happened to you? I have several rocket flares that are expired and see them for sale all the time. I have had them fail, presumably from age, but never seen any sign of instability.
psyco_1322 Posted September 4, 2012 Posted September 4, 2012 The flares are fine, the little motor that flies them into the air is what is the issue. I'm not sure what they are made of. I got a bunch of the flare/motor inserts back in 08, by last year they were nearly all bad, out of 12 motors, only about 2 flew with out issue. The rest blew up either immediately upon lighting, or within the first 40ft of flight. They don't appear any different to the eye.
Swede Posted September 9, 2012 Posted September 9, 2012 I was also drooling over some of those components. Pretty wild that you can buy flash bangs. And I'm digging on those friction igniters. I love mil surplus in general. You get stuff that your government bought for, say, $100, for $2. Or less. In the USA, the era just after Vietnam was a glorious time for all sorts of truly awesome mil surplus items. The good stuff has pretty much ceased to flow in the last decade, but there are still some good deals out there of all kinds.
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