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Europa-List: Wobbly altimeter and ASI

Subject: Europa-List: Wobbly altimeter and ASI
From: n7188u <chmgarb@gmail.com>
Date: Thu, 1 Apr 2021 08:46:32

Dear forum members,

One issue I had on my first flight yesterday was that my altimeter and ASI where
oscillating up and down. The airspeed was quite fast, like a vibration, but
the altimeter wobbled maybe 75 feet up and down more slowly.

This was particularly noticeable during initial climb and got better while level
and almost disappearing toward the end of the flight.

I checked for leaks on the static line per Bud's recommendations a few postings
ago (vacuum in line to 1000' and 135 KIAS) and the pressure held steady with
no leaks.

Any ideas what may be causing this? I thought that with the fancy static probe
we get with the kit the static pressure would be fairly stable. 

Best Regards,
Chris


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=501191#501191



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