LiamPyro Posted Monday at 03:47 AM Posted Monday at 03:47 AM (edited) Lately, I’ve switched from lifting my 3” shells from a mortar to sending them up on 8 oz rockets. For the first time, I got a video of the side-view of one of these ball shell rockets and noticed some disturbance of the shell symmetry. The rocket wasn’t quite at apogee yet when it broke, which contributed, but it almost looks like the body of the rocket deflected the paths of some of the stars. The symmetry issue is less visible from the other camera angle, below the rocket, which would make sense. Has anyone else encountered this? Do you have to break the shell away from the rocket tube before it bursts? Maybe I’m overthinking it and the outer petal was just partially blind. The shell is an experimental double petal… they’re not quite there yet. Videos attached below. IMG_1976.mov IMG_1143.mov Edited Monday at 03:51 AM by LiamPyro 1
LiamPyro Posted Monday at 08:37 PM Author Posted Monday at 08:37 PM (edited) 2 hours ago, DavidF said: That was a very nice rocket and shell! Thanks! Any tips for making them even better? I’m thinking of trying a win 39J delay… this one had a variation of the Westech Roman candle delay, which has good length and hang but is rather dim. Edited Monday at 08:38 PM by LiamPyro
DavidF Posted Monday at 10:14 PM Posted Monday at 10:14 PM Honestly, my work is not so tight as yours I wouldn't notice the small 'defect'. Also, my shells are 4" at the smallest, so the effect wouldn't be as noticeableAs you suggested, a longer delay might help. One thing I like to do is to use straight BP in the last increment so the tail from the delay fades before the burst. So many nice burst pictures an videos have a big streak through them from the rocket tail. For the nozzled BP motors I guess plain scratch mix would be better as the last increment. Just spit-balling here. I should be asking how that one was made
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