QNH Sources Flashcards
1
Q
Prior to passing the Initial Approach Fix, which QNH source should be set?
A
Actual airport QNH from an approved source, OR TAF QNH, OR AREA QNH
2
Q
What are the approved sources of airport QNH?
A
ATC, ATIS and AWIS except when QNH is forecast and a CASA approved meteorological observer.
3
Q
How long is actual QNH valid?
A
15 minutes
4
Q
Is METAR QNH ‘actual’ QNH?
A
No
5
Q
How much should the MDA be increased from forecast airport QNH MDA when Area QNH is used
A
50 feet
