We add 4%
pr 10 degrees below ISA on all
minimum altitudes. Furthermore, we add 500 ft
pr 10 knots of wind exceeding 30 knots (max 2000ft) during the initial letdown. Strong winds over mountaintops may create a local lowpressure that can give you a nasty surprise. Yes, we fly in mountainous terrain. Yes, we fly in temperatures down to - 35 degrees celsius (sometimes even lower). Yes, I apply the corrections. Religiously. No, our ATC will not do these corrections automatically.
"it is
not necessarily cold at altitude, a correction will
not necessarily be required, and the temp on the ground is
quite often lower", will
not necessarily bring you down in one piece.
[This message has been edited by Scando (edited 08 June 2001).]
[This message has been edited by Scando (edited 08 June 2001).]