In article ,
"Bill Daniels" wrote:

However, I have a beef with metric altimeters. The large hand reads 1000
meters per rev. An imperial units altimeter reads 1000 feet per rev. 1000
meters = 3281 feet so the metric altimeter is less than 1/3 as sensitive as
the one based on feet. To me, that seems inadequate.

Some gliders I have flown have altimeters marked in feet, but 3000 ft
per revolution rather than 1000.

Presumably it's possible to design a single unit for either metric or
imperial use and tweak the calibration by the 10% difference.

--
Bruce | 41.1670S | \ spoken | -+-
Hoult | 174.8263E | /\ here. | ----------O----------