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Guidance on making a model rocket engine? Answered

First, I've seen both potassium nitrate and ammonium nitrate being used in rocket fuel. What are the differences?

Second, how much temperature does a rocket nozzle need to withstand? Would JB Weld work for the nozzle?

Discussions

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iceng

4 years ago

Rocket nozzles are used once and made out of kitty litter impact hammer pressed between two steel shaped forms.

Still looking for the pointer for you.

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rickharris

4 years ago

Look to the right hand side - several projects to do this. >>>>>>>>>>>

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Vyger

4 years ago

Your dealing with some pretty dangerous stuff,

Ceramic or clay is what is used for a nozzle. Look at the business end of common fireworks. Epoxy burns. Try it, put a torch to it and see what happens.

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mykiscoolVyger

Answer 4 years ago

Ok. Thanks for the blow torch suggestion. That's a good way to proof test things.