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Search: Posts Made By: Alex Whittingham
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Forum: Professional Pilot Training (includes ground studies)
4th Aug 2017, 10:43
Replies: 9
Views: 4,278
Posted By Alex Whittingham

Thanks! I would agree the stations are close, now...

Thanks! I would agree the stations are close, now to find the answer ...

First of all a quick check through an online hypsometric calculator ...
Forum: Professional Pilot Training (includes ground studies)
2nd Aug 2017, 10:03
Replies: 9
Views: 4,278
Posted By Alex Whittingham

The QNH calculated from the QFE using ISA...

The QNH calculated from the QFE using ISA (hypsometric equation) depends on the elevation of the station because the height of the air mass between station elevation and sea level (h) is an input...
Forum: Professional Pilot Training (includes ground studies)
1st Aug 2017, 10:47
Replies: 9
Views: 4,278
Posted By Alex Whittingham

QNH is calculated by measuring the pressure at...

QNH is calculated by measuring the pressure at the station (ie QFE) and then increasing it to an equivalent sea level pressure assuming ISA conditions.

QNH is not the actual pressure at sea level...
Showing results 1 to 3 of 3


 
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