Pressure Settings

Question 1

QNH

Answer 1

(Barometric Altimeter)

This is the local atmosphere pressure adjusted to mean sea level at your current position.

• Just QNH, not Quebec November Hotel
• Must all be on same pressure setting or altitude appear different, but same

(Adjusted sea level)
99% of time

Question 2

QFE (or zero datum)

Answer 2

Local atmospheric pressure at your current location / airfield

(Not at sea level)

Question 3

(Pressure setting?)

Answer 3

(Portree)