[simpits-tech] Zero point on a two needle altimeter

[Craig Rochester]

Is this the name? http://www.kollsman.com/aviintro.html


-----Original Message-----
From:	simpits-tech-admin@simpits.org [mailto:simpits-tech-admin@simpits.org]
On Behalf Of Matt Bailey
Sent:	Sunday, October 27, 2002 11:59 AM
To:	simpits-tech@simpits.org
Subject:	Re: [simpits-tech] Zero point on a two needle altimeter

Heh well you could very well be right, like I said I don't remember ever
reading it anywhere, just hearing it.

	-Matt Bailey

Simon Kelsey wrote:
>
> Actually Matt, I think both of you are wrong <VVVBG>
>
> I seem to remember "Kohlsman" or "Kohlsmann"...
>
> <ducks>
>
> Simon
>
> ----- Original Message -----
> From: "Matt Bailey" <mattb@rtccom.net>
> To: <simpits-tech@simpits.org>
> Sent: Sunday, October 27, 2002 8:06 AM
> Subject: Re: [simpits-tech] Zero point on a two needle altimeter
>
> > Oh, sorry, spelling error. :) I had heard the term, I just don't
> > remember ever reading it. :)
> >
> > -Matt Bailey
> >
> > Gene Buckle wrote:
> > >
> > > I think he's referring to the "Kollsman" window, which is just a
> pressure
> > > adjustment you make to the altimeter.  AFAIK, Kollsman is/was an
> altimeter
> > > manufacturer.
> > >
> > > g.
> > >
> > > On Sat, 26 Oct 2002, Craig Rochester wrote:
> > >
> > > > What is a Colesman window?
> > > >
> > > > -----Original Message-----
> > > > From: simpits-tech-admin@simpits.org
> [mailto:simpits-tech-admin@simpits.org]
> > > > On Behalf Of Matt Bailey
> > > > Sent: Saturday, October 26, 2002 8:44 PM
> > > > To:   simpits-tech@simpits.org
> > > > Subject:      Re: [simpits-tech] Zero point on a two needle
altimeter
> > > >
> > > > I thought about a pressure box, but that seens like it would be
tricky
> > > > to meter out exactly the right pressure to get a precise, accurate
> > > > reading. It would be cool if you could make it work though, you
could
> > > > just output the atmospheric pressue in the sim...this would even
allow
> > > > the Colesman window to work.
> > > >
> > > >       -Matt Bailey
> > > >
> > > > Craig Rochester wrote:
> > > > >
> > > > > Dumb questions about altimeters, speed indicators, etc. If they
work
> like
> > > > > this: http://home.swipnet.se/~w-65189/AP_html/pitot_static.htm why
> can't
> > > > you
> > > > > just output two pressures?  The velocity pressure could be
> controlled by a
> > > > > voltage driven pressure regulator(V/P) and compressed air.  The
> barometric
> > > > > pressure would require vacuum and a vacuum version of a V/P.
> > > > >
> > > > > This way you could use standard instruments without modification.
> > > > >
> > > > > Craig R.
> > _______________________________________________
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