WV-Pyro Posted June 11, 2006 Posted June 11, 2006 I am going to make some aerial salutes and some other payloads to send up on some Estes engines. I was just curious about how much weight (in grams) do you think each engine size could send up a safe distance? Also, does anybody know the composition used in the engines? I would like to make some with that amount of power, or just simply reload them. Any help would be appreciated. Thanks
justanotherpyro Posted June 11, 2006 Posted June 11, 2006 Its BP with a ratio that is a bit off from 75:15:10. The ammount of a payload just depends on the thrust. Its more open to personal experimentation. I use C engines to take up a 5g salute. Here is a good tutorial.http://krimzonpyro.com.ve.carpathiahost.ne.../skyrocket.html
WV-Pyro Posted June 11, 2006 Author Posted June 11, 2006 Yea, I've read that tutorial. I need to take up about a 15-20 gram payload to a safe distance for some personal shows on the 4th. Think I should use a D engine? Also, can I can make some engines comparable to Estes by ramming pyrodex instead of KNO3/Sugar? Sounds easy enough.
radiorecker Posted June 11, 2006 Posted June 11, 2006 you can always look on the estes web site for the stats on there motors http://www.estesrockets.com/catalog_2006.pdf page 35 depending on how high you want it to go, we used a C 6-5 to lift a rocket about 150 feet or so with a total weight of about 100-115 or so grams we also used a D 12-5 and got about 250-300 with 60 gram total weight you can get a good idea if you know the total weight of your rocket by looking though the catalog and finding a rocket that is close to what your tring to lift and compair it to the max hight rating with the engines they requimend, it will give you a good starting point
Canadian_Pyro Posted June 11, 2006 Posted June 11, 2006 In this article, a C size estes engine is used to lift a payload of approximately 15 grams, plus the weight of the container. http://krimzonpyro.com.ve.carpathiahost.ne...sskyrocket.html
FrKoNaLeaSh1010 Posted June 11, 2006 Posted June 11, 2006 yeah cause someone didn't post that already......
Mumbles Posted June 12, 2006 Posted June 12, 2006 The composition is NOT 6:1:1. It's similar, but not 6:1:1. KNO3 - 71.79 C - 13.45S - 13.81Dextrin - .95
Canadian_Pyro Posted June 12, 2006 Posted June 12, 2006 yeah cause someone didn't post that already...... They didnt. Compare the two links. Although they are on the same site, they are different. Think before acting like an ass hole.
WV-Pyro Posted June 12, 2006 Author Posted June 12, 2006 Alright, thanks guys. I think I will be using a C6-5 for most of my work. Now that I have the composition, I will probably be making some of these in the near future. Thanks again.
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