Primarily for general aviation discussion, but other aviation topics are also welcome.
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When doing circuits, what height setting do you use on your altimeter?

QFE
126
64%
QNH
66
34%
RPS
No votes
0%
I don't look at the altimeter anyway
4
2%
#1519373
Joe Dell wrote:Fast forward and have a careful listen here between 14 and 16 minutes in.
...

14:45 "... this was forecast clear all day!" (flying over the fog).
(Reminded me of the recent Bristol thread with inadvertent IMC and diversion).

I was wondering if it was going to become a saved by SkyDemon thread drift... (plus the fog not beating them to the airfield).
:wink:
User avatar
By AlanB
#1519513
I only ever use QNH, probably because I came into Aviation in California, and if you try winding an altimeter to zero when landing at a 6700' airport, you need to buy a new altimeter afterwards :D

But the benefits are....if you go missed, no worries about finding the QNH to dial back in. It is as easy to fly a TP at 7700' as it is at 1000'.

GPS measures alt referenced to the Geoid, which could be as much as 50m out in most of the UK. WAAS improves on this dramatically though and hence the reason why you can fly an LPV approach.
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