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To: lml@lancaironline.net
Date: Fri, 07 Mar 2008 16:47:49 -0500
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From: mmcmanus@grandecom.net
Subject: Re: [LML] Re: LIV-P Cabin Pressure Sensor
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Since Tom brought up ideas that may not be too good, I was wondering if audible
altimeters used for skydiving might help.  There are a variety of them from
different manufacturers.  Most of them go off on the way up as well as the way
down.  So if cabin pressure suddenly exceeded the altitude you set, ie, 10,000'
then the alarm would go off. I've seen camera guys use these by rigging a light
to flash at the alarm setting too.  Go to any skydiving equipment dealer, try
paragear.com for example.

Just an idea.

Matt McManus


Quoting Tom Gourley <tom.gourley@verizon.net>:

> Lancair sells one.
>
> But they make it hard to find on their website.
>
> Here's a thought, although maybe not a good one.  An altimeter in the cabin
> that is not plumbed into the pitot-static system will indicate cabin
> altitude.  I've seen digial altimeters; maybe there's one that allows setting
> altitude alerts.  If the cabin altitude goes above 10K feet, or whatever you
> choose, you know you have a problem.
>
> Tom Gourley
>