Re: New post

On Nov 25, 9:55 am, Auriga <brada...@xxxxxxx> wrote:
Dano,

I love your scientific methods. Depending on the size of the "beater"
and your biceps, you can closely approximate the amount of force
applied by a "presser". That amount of force being such that would
cause case failure. Or if a case buster preventer was being used,
that force would be sufficient to consolidate said composition greater
than 1.5 g/cc.

"snort"

Mike B.

On Nov 25, 8:09 am, james_kai...@xxxxxxxxxxxxx wrote:



On Nov 25, 12:25 am, Kelly <kellyjon...@xxxxxxxxx> wrote:

shockwaveriderz wrote:
I would say ramming does maybe 1.2-1.3 g/cc whereas hydraulic presses
can do 1.9 g/cc +.

Density affects the burn rate of black powder. The higher the density
the lower the burn rate....

burn rate as measured in inches per second, or mass per second?

If it decreased the linear burn rate, but maintained higher mass burn
rate (which is possible since the density is greater), then the casing
pressure and thrust go up, as density goes up. If it decreased the
linear burn rate AND the mass burn rate, then these go down...

Do you know which it is?

Kelly

In my detailed studies of the archaic ramming with a 4# beater on a
concrete floor, to the advent of the industrial revolutions pressing
with a bench vise and cheater bar.
There was a good leap in getting the "snort" in a rocket case.
So without using a lifeline I'm going with: B, mass per sec.= raw
power.
Or, if by putting in more it burns longer then: A, longer burn= less
chance of CATO.
All tests were done with non-sparking tooling and a case sleeve.
My brother gave me a 2 ton hydro jack and when I get the stand built
the tests will become ubiquitous.
I've shot 1# rammed, and semi pressed stingers, the "pressed" came off
the peg like a kick in the pants with a twerping snort.
Dan- Hide quoted text -

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Not getting off topic here but remember us talking about Dan Williams
web site?
Got an E-mail from him today.
Seems he can get addresses right, ahem.
He needs help on this 'dola thingy he calls a twerp or propeller
driven tourbillion El-grande'.
http://pyrotechnics.no-ip.org/files/girandola_frame_side_view.jpg
Kinda what your son was saying about Ned's design, eh?
He wants to use a tether to keep it on a leash.
He might know the hilarity that ensues with erratic girandolas, which
seems a rule.(See Newton's un-numbered rule # C)
There's some possibilities with his forums too.
Don't tell any one, especially at "wreak"-pyro.
That bunch'll trash it shorthand, cigarette butts, beer cans, an'
spattered blood.
Did I just say that outloud?
I went out today 6AM in shorts, tee-shirt, and barefoot in the frost
with my tri-pod to shoot a glitter mine I made.
I'd done one last night and the glitter was so sharp, but forgot
camera has sound and there is a very audible Nancy sounding squeal of
me saying "look at that".
Anyway,
Dan
.