by FSTipster » Tue May 13, 2003 1:23 pm
Careful with the `B` key guys....
As already correctly stated, ATC is giving you the current barometric pressure which you can match by hitting `b` or calibrate manually on most altimeters - there's usually a knob.
To expand on the high altitude separation issue, in real life all aircraft flying above a certain altitude are obliged to set a barometric pressure of 29.92 irrespective of what the actual barometric pressure is. This is desigend to ensure that all aircraft flying at high altitude are "playing in the same ballpark".
In the U.S.A., again in real life, it's FL180 (18,000 feet). However this is not a world wide level. In the UK it can change many times depending which area you're in which, to me, seems to defeat the point but there you go.
It varies all over the world. BUT as far as Microsoft are concerned, it's a worldwide figure and applies anywhere you fly in the sim. So once you hit that altitude, you have to manually set the barometric pressure to 29.92 otherwise you'll get the infamous "You are x number of feet below/above your assigned altitude" moans until your IFR flightplan is cancelled.
Just remember to set it to true barometric pressure once your descent takes you under FL180.
Last edited by
FSTipster on Tue May 13, 2003 1:24 pm, edited 1 time in total.
Click the banner to visit the site
...!
....!
...
...!