On Jun 2, 11:41*am, Bruce Hoult wrote:
On Jun 2, 10:27*pm, "

wrote:
Then how about "metric" altimiters? *300 meters per revolution

I've never seen that, but I've flown a few gliders with altimeters
where one revolution is 3000 ft *-- presumably designed to be 1000m
and tweaked by 10%.

I really can't see that it's important what you set before takeoff in
a glider. QFE is as good as anything if you're not going to talk to
anyone, and all you usually care about is which way the needle is
rotating. *If you *do* have to talk to someone then you should be
listening on the radio to set your altimeter to the appropriate and
latest QNH for the area.

But it's so easy to do this correctly (QNH)... all the time. It costs
nothing.

-T8