OK this is good. I have some ideas on a blow down valve which I will get
around to commiting to a drawing by and by.
I guess loops are out of the question with the present valves. What would the
software think about being inverted? Think re entry. At what angle and vector
of acceleration would the rocket pass gas and freeze the valve or actuator?
Say 1/8 th of a full tank at 30 degrees? Remmember the vibration.
If you can build a valve that resists ice clogging at no extra cost in weight,
money or space, then why not use it?

John Carmack wrote:

> >
> >
> >>     Would ice formation ever be a problem on the main throttle valve?
> >
> >
> >         Only if the laws of physics are altered to suddenly render
> > peroxide significantly compressible.
> >
> >         -p
>
> We have iced solenoids during the gas blow down after peroxide is
> exhausted.  It might not be beyond the realm of possibility to form a skim
> of ice in a ball valve, but I'm pretty sure the motor wiouldn't have any
> problem breaking.
>
> John Carmack
>
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--
>>>>>>>>>>>>>>>>----<<<<<<<<<<<<<<<<<
........ Alex Fraser  N3DER .........
......... [EMAIL PROTECTED] .......
[~]_>^</\-[~]_>^</\-[~]_>^</\-[~]_>^<


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