ddewees Posted December 31, 2014 Posted December 31, 2014 (edited) I lit one of these tonight in the 3/4" ID size (1lb), and it was less than spectacular. I did have a larger than normal header on it (around 1300g), but I don't think that's the only reason why it performed so poorly. The only other time I've tried these in this size, it blew up because I didn't press it hard enough... So, I don't really have anything to go by other than a hunch. Which is that these motors don't necessarily scale the way I thought they did/would. Something about the larger diameter and increased quantities really makes these things enter a form of hyper-speed. Of course this isn't scientific... just an observation. Is this a reasonable assumption? I know bp rockets seem somewhat similar between the sizes, just more powerful as you go up. Maybe it's just my imagination, or possibly disappointment. BTW, strobe stars looks quite nice buried under snow...[Video]http://youtu.be/7EdtL22LMnY Edited December 31, 2014 by ddewees
jl88 Posted December 31, 2014 Author Posted December 31, 2014 What size is the first rocket at the start of the post? Has anyone made these successfully in 1lb size?
MWJ Posted December 31, 2014 Posted December 31, 2014 1300g is a lot of weight for that rocket, isn't it? On my chart I have 4-6 oz. for a 1 lb. rocket.
calebkessinger Posted December 31, 2014 Posted December 31, 2014 I have lifted a light six inch ball shell with a 1 pound bp motor. It only went about 400 feet up but it went. Dave F has also lifted a six . I think his went a little higher. I don't remember what it weighed. but he might, it's on his u tube channel. I think the name of his channel is. I'm a stranger here,
calebkessinger Posted December 31, 2014 Posted December 31, 2014 it was just fast bp, I don't remember whether I put a nozzle in it or not. It is the 6 in. palm looking shell on my u tube the stars burnt all the way down . I don't have time to search for it. or i would. 1
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