Safest Whistlemix

[Mumbles]

Danny Cregan did a test with CuO. It seems it is pretty similar to uncatalyzed whistle. So, unless you have a deep desire for grey whistle powder, probably not that useful.

 

I'll see if I can catch Psyco on MSN or something. We shall be having a few words.

 

http://www.wichitabuggywhip.com/fireworks/...istletests.html

[a_bab]

dagabu, as someone has pointed, the "pepcon disaster" involved ammonium perchlorate and not nitrate. In order to have ammonium nitrate OR perchlorate to explode in a fire, large quantities are needed (I'd dare to say in the order of hundreds of kilos/tons).

 

I'd have no problems to "blade mill" both oxidizers, but I wouldn't dare to mill BP as many do it. But this is just me.

[Pyro09]

First of all: Thanks for the interesting discussion ;-)

But I am still wondering which composition I should use..

[Bonny]

Yeah, I know, I think so too.. What do you think about the following comp:

 

76g Kclo4

23g Sodium Benzoate

1g Fe2o3

+3g Vaseline (Solved in Acetone)

 

Any experiences?

 

Kind regards, Pyro09

 

EDIT: I'm sorry, I discouvered a post which talks about exactly that comp.. so my problems are solved, thanks =)

 

 

 

 

Granulate the comp you have listed and you should be fine. You could also try varying the ratio of perc/benzoate...65/25, 70/30.

Edited November 4, 2009 by Bonny

[Pyro09]

Thanks, I'll give that a try =)

 

Greetings, Pyro09

[TheSidewinder]

Ok, I cleaned this thread up.

 

We're talking Whistle Mix, so let's be professional in our discussion of it. Thank you.

[Zmuro]

I use CuO catalyst because it gives a louder whistle and different sound compared to iron oxide, with my pusher tooling.

[Mumbles]

What other catalysts have you tried?

 

It may also have something to do with different tooling. Your pusher tooling may give different audible characteristics than the "standard" tooling Danny was using. It would be very interesting if that was the case. I suppose the sound is all based on resonance though.

[Pyro09]

But there is one more thing: is it okay to press my 14mm-rockets with whistlemix in my 4-tons-press? Or is that too much pressure?

[psyco_1322]

Well you don't want to press them to the full capacity of your 4 ton press, that will be too much. You can press them by feel, if you know how it should feel, otherwise forget that idea.

 

I suggest reading this page of Dan's, it explains all of what you need.

 

http://www.wichitabuggywhip.com/fireworks/...ts/presses.html

[Zmuro]

What other catalysts have you tried?

 

It may also have something to do with different tooling. Your pusher tooling may give different audible characteristics than the "standard" tooling Danny was using. It would be very interesting if that was the case. I suppose the sound is all based on resonance though.

I tried iron oxide and coper oxide for catalyst. I have three different 1lb tooling but I like the pusher tooling the most. I must install pressure gauge to my hydraulic press, because I think I press my motors with to much force. I did a test how much force is needed to rapture my 3lb homemade tubes and they rapture at the full pressure of my 5T press, so I think that they are quite strong.

[dagabu]

Well you don't want to press them to the full capacity of your 4 ton press, that will be too much. You can press them by feel, if you know how it should feel, otherwise forget that idea.

 

I suggest reading this page of Dan's, it explains all of what you need.

 

http://www.wichitabuggywhip.com/fireworks/...ts/presses.html

 

 

Steve LaDuke pointed out that pressing with to much pressure can cause the surface to "glass" or be to shiny and prohibits the grain from taking fire. I havent had this problem with the few I have made but there are always more!

 

D