Redrocketman Posted May 10, 2019 Share Posted May 10, 2019 thats one of the funniest things ive heard in ages!!!!! Ive had 1 literally rip a brand new 1'' hardwood broom handle in half lengthways, with the very 1st J class KNDX motor I sent skyward, Harry Potter would have been impressed with that one - supersonic broomhandle!!!!! Not very powerfull tho.......... 1 Link to comment Share on other sites More sharing options...
ArtApplewhite Posted June 2, 2019 Share Posted June 2, 2019 I've started "playing" around with rammed rocket fuel aka sugar motors. I've had very good results with them for static tests and a few successful flights with my flying 18mm Cinco design. Red Iron Oxide works wonders on the burn rate. I haven't used more than about 7 grams of KNSU+RIO in a use Estes 18mm casing. That's about all that will fit in the casing and still have room of a thick cap. I drill the nozzle out to 1/8". I have both drilled the core or used a mandrel (bamboo skewer) that 1/8". I've been using a oak dowel and dead blow hammer. It's been a lot of fun. I plan on scrounging up some 24mm casings and see if I can make a D class motor. The only failures so far have been with a couple of bent casings and a two clay caps. If too thin the cap will blow out the top. I always have the motor in a vertical position when testing and I use electrical ignition at a safe distance, never a fuse or cigarette lighter. That has kept surprises to a minimum. Eventually I will try making rocket candy (melted) KNSO (sorbitol) and KNDX (dextrose) motors and fly them at a local Tripoli Research launch. Art Applewhite Link to comment Share on other sites More sharing options...
JMan Posted June 5, 2019 Share Posted June 5, 2019 Glad to hear it Art. Also nice to see that you found your local rocket club. Im jealous because I dont have one anywhere close to me. Seems like your pretty experienced in rockets, what have you done before? Link to comment Share on other sites More sharing options...
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