Ramming nozzels

[fred815]

Now I've read where one should ram their clay nozzels (core burner) with one increment?? Evidently layering is a no no. Really??

[Seymour]

I don't think layering is a no no. I have rammed nossles and clay plugs in a couple of increments plenty of times.

 

Ultimately though, you don't need excess clay, and about the right amount in most rockets and other pressed devices corresponds to one increment, so it's usually done in one increment out convenience, and why not?

[val77]

for a good noozle use 8 gramms of clay for a 3/4 rocket

[Col]

For 3/4" motors i use a single 10g increment of nozzle mix pressed to 6500psi.

[val77]

but the quantity of clay depend to the power of your powder

nice look col !

[mabuse00]

The best compression allways occurs immedialtely under the rammer, and it decreases with the length of the increment.

 

Thus you create sharp jumps in density at the changeovers - predestined breaking points...

[Col]

but the quantity of clay depend to the power of your powder

nice look col !

They`ll handle a hot bp rocket without blowing out.

 

http://www.youtube.com/watch?v=c4EMvFzKZho