[BProckets] Re: grams of powder per pound of rocket

[Joseph Madziarczyk]

When you use a press with a gauge attached to a bottle jack, you have 
to factor in the diameter of the hydraulic cylinder of your press along 
with the square inch area of your rocket tool.

When using a PTF gauge it reads the PSI directly that is being applied 
to the rocket tooling.

JOE


On Thursday, September 30, 2004, at 12:32  PM, Vince Hudkins wrote:

>
>> oh and i know some people ram their BP rockets but
>> ill be useing a press so how much presure do you
>> press at? I have a Force to presure gauge so i wont
>> be relighing on the presure gage on the bottle jack.
>>
>
> An answer (notice I wrote "An answer" as opposed to
> writing "The answer"?)...
>
> Anyway, an answer to your question regarding loading
> force is "It depends".
>
> I'm sure you wanted something less ambiguous, so let
> me go on.
>
> It depends on if you are talking about an end burning
> rocket or core burning rocket.
>
> Others can check me on this, but I'm pretty sure a
> loading force (i.e. what you read on your P2F gauge
> and NOT what you read on the bottle jack gauge) of
> 6500 pounds is a good target starting point for your
> rockets that have a core, and something like 8800
> pounds loading force for end burners.
>
> But I'm only going off of memory - not notes - here
> for core burners I have built and what I've been told
> to do with end burners (in other words, I have not
> tried building end burners yet)...
>
>
> 		
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