REFLECTOR: Need Altimeter

[Douglas Holub]

You learn something new every day.  Thanks, Bill.
----- Original Message ----- 
From: "John Dibble" <aminetech at bluefrog.com>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Sunday, February 05, 2012 6:02 PM
Subject: Re: REFLECTOR: Need Altimeter


> Well, here is what it says on
>
> http://en.wikipedia.org/wiki/Altimeter
>
>
> "On a sensitive altimeter, the sea level reference pressure can be 
> adjusted by a setting knob."
>
> This is also what I learned when studying for my IFR last year.  FWIW
>
> John
>
>
> William Walker wrote:
>
>>  Actually, non-sensitive means it has no internal "vibrator" or "exciter" 
>> whose job it is to keep the needles from sticking from lack of inertia or 
>> light friction. All TSO'd
>> 3 1/8" two-needle altimeters have these.
>>
>> It is a standard UMA single-pointer 5-410-10 and most definitely has a 
>> Kollsman window for altimeter adjustment.
>>
>> Having said that, I would not really want to fly IFR with it, but it 
>> would do in a pinch if it was high on your panel. It was very closely 
>> aligned with my GRT EFIS
>> during last year's Pitot/Static certification.
>>
>> Bill
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