how much lift powder

[eb11]

i shot off my 2 inch by 3inch long canister shell this weekend it weighed 130 grams i used 13 grams of 4f bp for lift and that thing went into orbit just wondring if i used to much bp our what, the next question is instead of rice hull i used 4f bp for the burst charge and i dont think my c6 stars ignighted any ideas on if my burst charge was to strong and did not ignite the stars thanks for the help

[xBangergoosEx]

Instead of using 10% try using 12% next time. That little difference will give you better results. As for your stars, any comp that has a high charcoal content (such as C6, Tiger Tail, etc) will be a pain in the ass to ignite. Try priming your stars with meal powder.

 

 

[eb11]

ok now i am confused isnt 12% more bp than 10% the shell went to high i think i want it to be lower. i thought that Chrysanthemum 6 was easy to ignite may be i am wrong new at this

[deadman]

Hey may have meant 1/12th instead of 1/10th. It's not uncommmon for hot lift to be 1/16th of the shells weight usually on larger shells though. Try around 11g lift and definitely give a layer of meal prime to help. If they still blow blind then step down your break... strong breaks are good for small shells but charcoal streamers aren't known to blow blind.

 

Edit: aren't

Edited August 6, 2012 by deadman

[Mumbles]

Charcoal streamers, especially something like C6 is about the most difficult star to blow blind. BP is not going to normally blow them blind. It sounds like you need to make sure that the stars are primed. After that I'd look at manufacturing technique. A poorly put together shell can cause issues like this if the casing fractures too early. The other option is that the stars were not hard enough and shattered in the break.

[MikeB]

To add to what Mumbles said, Spider web stars are very fast burning and can take a very very hard break. Flash bags are the norm and they ignite and stay lit very well.