Spit IIA Speed in game test

[SlipBall]

Originally Posted by Crumpp

You most certainly do reset your altimeter to the current settings before you take off and it does change while enroute. It is the very first thing ATC will give you at the hand off after radar contact.

It is absolutely essential to safe flight.

I was taught to set it to the destination from the chart value, while en route and close. I realize it could be advised differently, elsewhere in the world.

[bongodriver]

Originally Posted by SlipBall

I was taught to set it to the destination from the chart value, while en route and close. I realize it could be advised differently, elsewhere in the world.

Are you talking about setting field elevation on the pressurisation system? we usually add 100 feet to ensure the cabin is depressurised before touchdown.

[SlipBall]

Originally Posted by bongodriver

Are you talking about setting field elevation on the pressurisation system? we usually add 100 feet to ensure the cabin is depressurised before touchdown.

No pressure system, Cherokee 140 PA-28-140 fixed gear, two seats designed for training.

[bongodriver]

Originally Posted by SlipBall

No pressure system, Cherokee 140 PA-28-140 fixed gear, two seats designed for training.

OK that makes no sense then, or I believe people here are getting airfield elevation mixed up with QNH....not the same thing, QNH is the pressure setting you set on the altimeter so it reads your altitude above sea level, if you land on QNH then the altimeter will read something close to airfield elevation but not exact, a barometric altimeter is not so precise.
QFE is the pressure at airfield level, it will read close to 0feet +/- altimeter errors when on the airfiled and will give height above aerodrome when flying.
QNE is standard setting (1013) and the altimeter will read your flight level, given that pressure at the surface changes this could be a datum above or below mean sea level.