"Ron Natalie" wrote in message
. ..

"Dudley Henriques" wrote in message
news:IIp3c.4260$ Here in the UK, setting the altimeter to This,
considering an average atmosphere, denies you setting an
altimeter to 0 on any airport runway above about 2500 to 3000 feet
MSL!!!

The highest elevation (Ben Nevis) in the UK is under 4500 feet. The
highest airport isn't
even close to that.

Discovering this is the answer. It's basic enough, but the regulations
writers in the UK leave it to the pilots to discover this limitation instead
of just telling everyone that a QFE setting can only be used at airports
below the ASL limits for the Kollsman window.
All I've been able to find in the UK regs is that QFE is an option. They
don't state any limitations at all for elevation as far as I've been able to
discover; perhaps not for the UK pilots, but it's not too clear for pilots
flying into the UK for the first time.
It's interesting, and confuses a lot of pilots.
Dudley