Activity Stream

Hello Dave, I am going to be purchasing a Cobra firing system for myself finally! However, I am most likely going to be purchasing it from my...

I like the idea of zip tying to a dowel rod glued into a board, given that this weekend I'll be using a dock where there's no ground to pound...

Distance is your friend. In the professional world we have the National Fire Protection Association (NFPA) standard of 70 feet per inch of your...

I don't think they will fit in a 1.75" tube but I have dropped them into 2.5" mortars with no problems. And no, it really doesn't matter if the comet...

I have experienced the occasional unexpected cake firing due to proximity on a dock.... I guess it's better to have fired then not at all, so there's...

If they fit they will usually work. I have also ounded rebar in the ground and zipped tied them to the rebar, also wooden dowl rod glued into board...

Thanks for posting this Dave. Back in the mid 1990's I was the chairman of a local festival. We wanted fireworks and found Pyrotechnico. They were...

Yeah, the tendency of cakes to flare up as the cardboard burns afterwards is my nemesis...the best I can do is to position them in zones that are...

Given the number of cakes that turn into a full-blown conflagration after they finish, I expect you might have a real problem if you have too many...

All, I really appreciate all of the useful information in the replies...I hadn't thought about the stray spark issue hitting loose BP like that, as...

Hi Dave, Want to thank you for the 1.4G Pro Ignite Certificate Program. It allowed me to purchase some 1.4G Pro this year. I had applied for my...

I’ve experimented a bit with this under controlled conditions. You’re right that the 60g total composition cap means manufacturers often cut lift to...

I believe this one was just posted. .

I used to shoot a lot of Golf Courses, and the "Exploding Mower" was a legendary myth I heard from many of them ;) They'd come up and tell me...

Man, if that was staged, it was risky (and stupid) as hell. Blowing apart a running lawnmower not only presents the risk of shrapnel, but of spraying...

I've seen this video. There is a second video from a different angle as well which makes me wonder if wasn't staged. If it was a shell, I don't think...

Agree! I missed that part of the original question. If you are going to experiment with adding BP, add it to the lift cup, not the bottom of the...

I would not chance dropping loose BP in the bottom of the mortar due to the chance of having it firing sooner than the lift charge, causing a low or...

Yeah, the time fuse would be your limiting factor. You might be able to get a little more height due to increased velocity, but it would probably be...

Here's the bonus video for how I learned to put these fireworks display shells in mortars:

It may get it out of the tube faster, which, similar to a longer tube, will get it a bit higher. the real issue is the time fuse which is about 1.5...