Caramanos2000 Posted May 30, 2007 Posted May 30, 2007 I need safety advice asap! The engine I am using has a max lift off weight of 113.2 grams. The rocket I just made is sort of a beraq. First a large Salute, 3 smaller ones and another large one. The finished rocket weighs 103g. Is this safe, will it lift off? Dont exactly want 20g of flash going off on the ground.
rocket Posted May 30, 2007 Posted May 30, 2007 From what you’ve said it should lift off, but if you want to make sure make another rocket motor and put 103g on it to see if it will take off. Make the case the same of the dumpy shell on it the same as the other so you get the same amount of drag.
hst45 Posted May 30, 2007 Posted May 30, 2007 The engine I am using has a max lift off weight of 113.2 grams.Based on what? Is this the max you've lifted with a similar motor before? If it were me, I would back-off on the max weight by at least 10% or 15% just to be certain that your rocket will have sufficient lift, so it sounds like you're probably about right. And I would use a loonnnng fuse and be way the hell away when it attempted liftoff, just in case the headings turn into impromptu ground effects . Good luck.
Caramanos2000 Posted May 30, 2007 Author Posted May 30, 2007 The motor is an este B6-4, thats how I know the max lift off.
Caramanos2000 Posted May 30, 2007 Author Posted May 30, 2007 It flew about half as high, still safe though. OMG I cant do that again unless I have some land. My mom didnt catch it on tape cause the camera said battery too low to record :(:( NOOOOOOOO! One huge bang, another mild one three smaller ones and the biggest for last. I do have a pic though. What an amazing sight, just wow. I think Im gonna cry 100g of Flash was a bit too much lmao.Its an Estes B6-4 Engine inside a 3/4" silver tube from pyrocreations filled with flash and mg, fused to another of the same tube filled with bp and 3 small flash salutes and then a 1" cup filled with flash and mg. http://i104.photobucket.com/albums/m171/Caramanos2000/FourthRocket.jpghttp://i104.photobucket.com/albums/m171/Caramanos2000/FourthRocket2.jpg
PyroMan16 Posted August 17, 2009 Posted August 17, 2009 It should work but I wouldn't risk it. If you do thou, go to the MIDDLE of NOWHERE!
Eric70 Posted August 17, 2009 Posted August 17, 2009 PyroMan16 - you are over two years late on replying to some these posts! These guys have either figured it out by now or moved on. It should work but I wouldn't risk it. If you do thou, go to the MIDDLE of NOWHERE!
PyroMan16 Posted August 18, 2009 Posted August 18, 2009 Oh sorry I`m new. I don`t see a date on when the topics are started thou? And anyway its still a good message to anyone that ever reads it.
Swede Posted August 18, 2009 Posted August 18, 2009 Yep, this is the sort of device that is NOT recommended for beginners, or anyone else for that matter - FP salutes electrically taped to an Estes engine. Generally bad idea, and a good way to give pyrotechnics yet another black eye.
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