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The Blunderbuss on Colfax in Denver sells 4F BP to rocket guys//www.theblunderbuss.com/Worst case, if you need BP, someone will have some for you. Check with the club prez, Joe Hinton. He always has some to offer, and if he’s running…   Read more»

So where can one get ffff bk powder around here? I have 2 core sampled rockets from using pyrodex. Of course I just substituted it for 4f and before Ive seen the video. But now im very nervous using it…   Read more»

yea thats the site

Here’s a site for using Pyrodex compared to BP: http://www.pratthobbies.com/info_pages/pyrodex/pyrotest.htmNotice the difference in whether it’s loose or contained. When it’s contained properly, looks about the same. I’ve never used it. Geez, I bet it’s the same site… those are the…   Read more»

I wish there was a spellcheck somewhere….The only person I really know that has the patience and makes his own ematches is Brad McGarvey. Of course he makes his own motors and altimeters too.Firefox 2 has a built in spellchecker…

Most are able to mix their own stuff no kit needed.

8)

I wish there was a spellcheck somewhere….The only person I really know that has the patience and makes his own ematches is Brad McGarvey. Of course he makes his own motors and altimeters too.Hmm My computer underlines all the misspelled…   Read more»

Chemistry??? (it was a kit!!! just mix part A and part B and keep away from open flame )I figured it was the same stuff in the formula they had in with thier match heads. They would not sell…   Read more»

I wish there was a spellcheck somewhere….The only person I really know that has the patience and makes his own ematches is Brad McGarvey. Of course he makes his own motors and altimeters too.

Is there spell check on this sight someware cause I suck at it! 🙂

Ill get a couple of comecial matches for next launch.

Tim Thomas from GLR always has them, at every launch, plus igniters.

Your description of an ematch vs what a comercial one does is fairly different. They are specific in the way they work. I do know some people that have had good luck making them and they perform just like comercial….   Read more»

Your description of an ematch vs what a comercial one does is fairly different. They are specific in the way they work. I do know some people that have had good luck making them and they perform just like comercial….   Read more»

constevens wrote: One of the properties of an ematch that you want is that pop.Thats just it though it sparks and it pops the tip of the match off without the burn.When I say burn, its a fast hot burn….   Read more»

I agree with Conway here. I make my own ignitirs, using the Magnelite pyrogen and CAT 5 wires with 26ga nichrome. They work great, but I wouldn’t touch ematches. Reliability is to critical and the commercially available ones have been…   Read more»

One of the properties of an ematch that you want is that pop. Its what sets off a BP charge for deployment. Now not saying a slower light wouldn’t but the energy from a fast poof of all the pyro…   Read more»

Scott, we’re listening to you and re-grouping. Art Hoag, JamesR, Conway, and others are all experts in this area. Ken Plattner is getting really good as well. I just buy my e-matches from Tim Thomas (GLR) and coat them with…   Read more»

Now I remember where I heard to NOT tap…

😀

Now I remember where I heard to NOT tap…

I do NOT tap the airframe holes – only the nosecone or coupler. In addition, I usually put some talcum powder on the coupler and nose shoulder to lube things a little bit. Finally, since I generally fly altitude birds,…   Read more»