Hi,

What was the criteria for the failure of the check? The Winter altimeters
are not, and cannot be as accurate as larger altimeters. Winter doesn't
claim they are. But they are fine for most glider pilots. I sometimes get
complaints about them from instrument rated power pilots, who expect them to
perform like a larger altimeter.

You can see the specifications on my web site he
http://www.cumulus-soaring.com/winter.htm#W-4555

Or perhaps the unit just needs repair at Winter. They support their
products very well. A repair would cost much less than a new unit.

I fly with 2 Winter 4555 altimeters in our DG-1000 and I'm happy with them.
But I suppose I'm biased because I sell and support them.

In the last year I heard of a new brand that offers 57mm altimeters for use
in certificated aircraft. I inquired and found that they cost over
$3000!!!! Wow! That is the only other option I am aware of. I don't
remember the brand name, but I believe United Instruments now offers them as
well for even more money.

Best Regards,

Paul Remde
Cumulus Soaring, Inc.

"Ventus2NZ" wrote in message
...
I have just had my Winter 57mm altimeter fail it's instrument check.
From what I can ascertain, this is not all that uncommon. Does anyone
have any ideas or suggestions of a suitable 2-1/4" alternative.