[Milsurplus] High & Mighty SCR-718

[D C *Mac* Macdonald]

I don't remember the bit about  ESTIMATING  pressure
altitude by means of the boiling point of water, but it
is a valid technique.  The boiling point at various altitudes
is known, even if not by me.  There is some sort of rule
of thumb that states how many degrees it drops from
100C/212F per 1000 feet of altitude gain.  I can't remember
it at the moment, but it is several degrees F per interval.
Water at Denver or Albuquerque boils a bit below 200F
if I remember correctly.

Mac  ---  K2GKK/5 in Oklahoma City

----Original Message Follows----

From: C Whitaker <whitaker at pa.net>
Reply-To: whitaker at ieee.org
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] High & Mighty SCR-718
Date: Sun, 31 Jul 2005 18:12:30 -0400

de WB2CPN             2005.07.31.2214

Then there's the way they measured pressure altitude
in "Strategic Air Command", I think, by measuring
the temperature of boiling water.

73  Clete        Sorry 'bout that, Mac.