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funchal elevation query

PostPosted: Sat Apr 07, 2012 12:27 am
by gpgibson
i was trying to land at funchal (madeira) LPMA rwy 5
the approach plate gives the threshold at 147ft but when i eventually landed my altimeter was reading 714 ft my altimeter was set at 29.92 why the discrepancy?

Re: funchal elevation query

PostPosted: Sat Apr 07, 2012 5:05 am
by C
The most obvious answer is the QNH at Funchal  wasn't 1013/29.92, hence your altimeter was incorrectly set.

Re: funchal elevation query

PostPosted: Sat Apr 07, 2012 10:21 am
by gpgibson
QNH was set at 29.92 for fenchal (local) I even flew a cessna at 100 ft above sea level ( couldnt go any lower) then i landed at fenchal and my altimeter still read 720 feet on the tarmac.....if for instance i sit on the tarmac at east midlands (EGNX) and set the altimeter to 29.92 it read 310 feet which is correct according to pooleys....

Re: funchal elevation query

PostPosted: Sat Apr 07, 2012 10:50 am
by dave3cu
In FSX LPMA is poorly done, no doubt to accommodate the poor terrain elevaton map.

The airport elevation listed in the FSX map is 711ft.

Re: funchal elevation query

PostPosted: Sat Apr 07, 2012 10:54 am
by gpgibson
thank god for that i thought i was losing it, i was working from an approach plate, so FSX is giving incorrect info then? phew!!

Re: funchal elevation query

PostPosted: Sat Apr 07, 2012 12:52 pm
by C
thank god for that i thought i was losing it, i was working from an approach plate, so FSX is giving incorrect info then? phew!!


Isn't Funchal built partially on stilts on the side of a hill on the sea front. Probably explains it then.

That aside, you shouldn't be flying in Europe on 29.92 (or in.Hg) anyway! ;D