Rocket Formulas

[CrazyIsraeli]

Well that thing is, I read all kinds of stuff but I never really saw "Formulas" of Whistle rockets and Screamers... I dont know how to put it...

Since I'm still new to Rocketery, I have no idea of advanced types of "Special Effects" (If it is the proper term)

 

1. Is the whisteling powder also the propelant? Or it needs to be mixed with a propelant?

2. Are there defined formulas? Or is it a matter of trial and error, Maybe even nuzzle type (Not likely, But just to be sure...)

3. What are the risks of flying a rocket that is loaded with BP, without fins. Can it not crash into the ground, and god forbid cause injuries?

4. Must a firework rocket be made of Aluminium? Or just other less expensive more acsessive metirial?

 

By the way I am very sorry for these silly questions, But I am still an amature. And by the way yes I have read "Rocket_Manual_for_Amateurs_by_Capt[1]._B._Brinley"

But it was a bit foggy for me...

Thanks so much for all of your help!

Roy.

[pa_pyro]

1.whistle mix(powder) is 70% KClO4 and 30% sodium/potassium benzoate or sodium salycilate.

2.anywhere from blackpowder/smoke mix to whistles, strobes, and composite propellants.

3.if the rocket is not fin stabilized use a stick, and make sure the rocket balances just below the nozzle.

4.NEVER use metal for rocket casings, because a cato will cause flying shrapnel, start off with hand rolled tubes(paper or manilla folders) which are cheap and easy to make.

 

Look in the rocketry thread for more information/to ask questions.

[CrazyIsraeli]

Any place that I can get more of these formulas?

Are there types of lists?

 

And perhaps someone has the formula of Screaming Banshee?

 

And sorry for asking but what does CATO mean?

[rocket]

It stands for Catastrophic At Take Off or CatasTrophic Take Off

[al93535]

You really need to read read read, thats all I can say. There are many good topics in the rocketry section. I advise you to start there, and also check out other forums for more information. Also check out www.pyrosociety.org.uk

[CrazyIsraeli]

I sure will!

Thanks! =]