View Full Version : Baro. Altitude above 10K
03-05-2002, 07:56 PM
I am supposed to use 29.92 for baro. pressure above 10K, right?
I've been having problems w/ ATC and assigned altitudes and I think this is the cause. Can somebody enlighten me?
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03-05-2002, 08:04 PM
LAST EDITED ON Mar-05-02 AT 07:11PM (EDT)[p]I think it's above 18K, where FLs and class alpha officially begin. Below 10K is the 250 knot speed limit in the US.
03-05-2002, 08:07 PM
When using fs2k2 ATC the barometer should be set to the standard 29.92 when climbing through altitude of 18000 ft or more. Do not reset it until you descend below 18000 ft. Ctrl. B is used to set the barometer. If you are using FSUIPC you can set up an hot key combination. I Use CTRL.+SHFT.+B. I hope this helps.
03-05-2002, 08:13 PM
This an slight clarification to the above:
Ctrl. B will set the current barometer whatever it is. CTRL.+SHFT.+B if set in FSUIPC, will always set the Barometer to 29.92.
03-05-2002, 11:56 PM
Just to make it clear, you use the local barometer reading untill you get to FL180, then you switch to 29.29. You do the same on the way down.
03-06-2002, 05:17 AM
>This an slight clarification to the
>Ctrl. B will set the current
>barometer whatever it is. CTRL.+SHFT.+B
>if set in FSUIPC, will
>always set the Barometer to
A slight clarification to the the slight clarification. The key is `B`. Not Shift+B or Ctrl+B. Just `B`. Yu can change the setting to another key combination if you want under the assignements menu, but the hot key combo for re-setting Standard is not available from the FS menu system itself. That's why you need FSUIPC.
03-06-2002, 05:21 AM
Yes. Local pressure below 18,000, 29.92 above.
>I think it's above 18K, where
>FLs and class alpha officially
>begin. Below 10K is
>the 250 knot speed limit
>in the US.
That's the problem in FS2002. I live in Europe and in Europe airspace classification is different than in US. Outside USA, the altitude at which pilots transition from indicated altitude to pressure altitude is variable. Above this Transition Altitude, the term "Flight Level" (FL) is used. In most of Europe, the Transition Altitude is between 4,000 and 6,000 feet MSL, but in some areas, it ranges from as low as 3,000 to as high as 7,000 feet.
So, when you fly in European airspace you will reset altimeter to 29.92.well bellow 18000 feet. If you follow US airspace clasiffication there will be no problems, but Microsoft must incorporate rest of the world in FS2002, not just USA ATC system.
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