Nice rocket! I saw some charcoal firedust in the break, but I bet you put more blue stars than charcoal stars! Veline system is optimized to share components, not produce the best color. The metallic fuel is increasing the brightness at the cost of color purity. Organic fueled composition such as pyro science blue http://howtomakefire...o-science-blue/ should have a richer color.
Regarding the break, it's a matter of personal taste and objectives. Clearly the use of a paper plug instead of stringing resulted in a dump break instead of something more symmetrical. I will say that I've seen some Chinese rockets that have huge, thunderous, round breaks from only a bag of flash powder and round stars in a thin tagboard casing.
Looking forward to the next one!
Thank you for the comments and the link. I was hoping a veteran such as you would chime in, as I know my design leaves room for improvement. Minimally, I need to improve my launch pad, stick choice and stick application. I added extra charcoal to the delay portion composition of the rocket, in attempts to add a bit of charcoal tail. I suppose this sacrificed height? More Veline blue stars were used than charcoal. I also did not prime the charcoal stars...maybe a mistake? I had read conflicting information about the necessity to prime those. I opted for a plug because I assumed the report would be less audible, given the location of launch (large field in a semi-residential area). I didn't take into account this affect on dump. I will experiment with stringing on the next one to see the result. This week I plan to make a similar rocket with a Lancaster red formula (organic) stars recipe I found online. Thanks again!
About the organic blue stars referenced in the link: How does one determine whether to use water, alcohol, MEK, acetone to dampen stars? Is it based on solubility of the binder(s)? I assume parlon is not soluble in water, dextrin is. What about red gum? I have also seen recipes that indicate certain star recipes should be cut, rolled or pumped---or any combination thereof. How is that best determined? I'm using a homemade spring-loaded 3/8 dowel/aluminum star pump I made based on a thread in this forum. Thanks
Edit to add question about moistening technique
Edited by Dorkmongoose, 11 March 2019 - 06:10 AM.