hondo Posted November 8, 2007 Posted November 8, 2007 I am trying to see if I can make a 1 pound rocket into a stinger rocket. I made a jig out of angle Iron and drilled a hole in the steel as to be able to drill a hole in the rocket casing off center just like a stinger, do you think it will work? has anyone tried it? I have one made but it might be a while until I can fire it
hst45 Posted November 8, 2007 Posted November 8, 2007 If you're talking about an end-burner it seems like it should work O.K. A stinger is basically a short end-burner that's spin stabilized, so IF you get the angle correct, and IF you make a correct size hole, then it will probably work. For a 1lb.'er I'd try a 4" tube and see if that flys (pun intended). You are, of course, going to need a small, say 1" or 1-1/2" core to set down on a spindle to fire it. If it's a 7" or 8" motor it might be a tad on the tippy side unless the core-to-spindle fit is pretty close. My experience with stingers is that they tend to be more erratic than the typical stick stabilized rocket, but they are a blast none the less. Enjoy.
NightHawkInLight Posted November 9, 2007 Posted November 9, 2007 In my 3/4" stingers I use the fastest BP I have and give them a core 3/4ths of the way up the grain. The two vents provide enough of an outlet for the increased amount of gas to escape. Granted, you may not be able to make so large of a core on a 1lber, but still make a core at least as high as the side vent is on the tube.
psyco_1322 Posted November 9, 2007 Posted November 9, 2007 anyone ever tryed putting a stick on a stinger? I have a rocket that Im am suspecting to be spin stablized but im not sure and dont wanna put on a stick and have it spin. Its a rocket out of a hand held signal device. The one on my photobucket. I has tiny pin holes that are positioned as if they were to spin it but I dont see a holes that small being used-maybe its supposed to burn open.
NightHawkInLight Posted November 9, 2007 Posted November 9, 2007 If it is a rocket made to fire from a device without a stick it must be spin stabilized. The tiny holes are probably enough to hold a spin that has already started, did the device it was meant to be fired from have a rifled barrel? I have never put a stick on a stinger but I can only imagine it would give a very unusual flight...Probably a wide spiral upwards.
FrankRizzo Posted November 10, 2007 Posted November 10, 2007 anyone ever tryed putting a stick on a stinger? I have a rocket that Im am suspecting to be spin stablized but im not sure and dont wanna put on a stick and have it spin. Its a rocket out of a hand held signal device. The one on my photobucket. I has tiny pin holes that are positioned as if they were to spin it but I dont see a holes that small being used-maybe its supposed to burn open. Those Pains-Wessex rockets *are* indeed spin-stabilized. Attaching a stick would make for a very "interesting" flight path
psyco_1322 Posted November 12, 2007 Posted November 12, 2007 Thanks Frank, yep thats what I thought. Tiny port holes though.
fizeau Posted November 13, 2007 Posted November 13, 2007 I read this thread yesterday and got the time to try a stinger on a stick. I ignited it in the core, not in the vent, because I wasn't keen on getting a rocket at my head. The flight was surprisingly straight, even if it did wobble in the end stage. Test with igniting the side vent has to follow. http://www.youtube.com/watch?v=66jX21xNy1E
Mumbles Posted November 13, 2007 Posted November 13, 2007 I think results may be different if vent ignited.
psyco_1322 Posted November 24, 2007 Posted November 24, 2007 So has anyone put a stick on a stinger yet and side lit it? I would but I dont have tooling.
hondo Posted December 6, 2007 Author Posted December 6, 2007 Ok I shot off the 1 pound modified stinger and it worked, didnt go very high but flew straight, I dont have a reference for a regular stiinger but it did work
hst45 Posted December 6, 2007 Posted December 6, 2007 didnt go very high but flew straight, Good job! My 1 lb.'ers are 4" long, burn for about 100 feet or so, and DO tend to wander a bit off course. If I use the same base and the same fuel and make a 6" long end-burner they go string-straight and fly several hundred feet at least. They're fun, none the less. Oh, and don't try to get your stingers to carry a heavy payload, unless you want to end up like me and embarrassing yourself in front of your friends!
psyco_1322 Posted December 10, 2007 Posted December 10, 2007 I would but I dont have tooling.You don't have to have tooling to make stingers. A simple wooden dowel to ram it will suffice. Don't withhold yourself from the fun of making them just because you think they're complicated. They are easy and without much effort to make and bring a lot of pleasure. What am I supposed to ram with this dowel? Powder in a tube dont make stingers. I made some tooling, just not very good tooling.
crazyboy25 Posted December 10, 2007 Posted December 10, 2007 tooling isn't necessary. roll a tube ram some clay ind ram BP in put in another plug drill a hole and a side vent. i believe nighthawk had a tutorial that worked rather well http://www.youtube.com/watch?v=dRWh9JeGuAk
Mumbles Posted December 11, 2007 Posted December 11, 2007 If you are going that route, drill the side vent first, well before the BP additions. That way you get it right over the plug, and can anchor the fuse in with the BP.
NightHawkInLight Posted December 11, 2007 Posted December 11, 2007 If you are going that route, drill the side vent first, well before the BP additions. That way you get it right over the plug, and can anchor the fuse in with the BP. Hey great idea! Seems a simple enough step for a little extra security. Thanks for the tip, I can't believe I didn't think of it earlier.
Mumbles Posted December 11, 2007 Posted December 11, 2007 I had crumbling and cato problems if I didn't do this. It is also much harder to get the vent hole lined up exactly parallel to the wall if you don't do it before hand.
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