View Full Version : Really cold weather operations
ceefax
5th Feb 2012, 08:27
Some friends are currently on their way to Lapland on a Jet2 charter from Manchester. The current weather report is -32 Centigrade at Kittila Airport :ooh:
Was just wondering if weather this cold causes any extra issues when on the ground? Is there a minimum start temperature below which it's better to keep engines running for example?
backofthedrag
9th Feb 2012, 12:47
The APU should be kept running , external airconditioning used ( warm ) or the a/c in heated hangar with water drained or water pipes , toilets etc will freeze up. Outflow valves may freeze. The engines will start unless the starter valve has frozen .
spottilludrop
9th Feb 2012, 17:08
Just leave the packs on, that keeps everything toastie, need need to drain water or put in a hangar, plus the bleed air will prevent the start valves freezing up
grounded27
10th Feb 2012, 05:29
I remember being restriced from ops into -80f as strut seals could rupture. You sound safe.
reportyourlevel
10th Feb 2012, 19:25
You need to watch this!
Ice Pilots NWT - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Ice_Pilots_NWT)
Piltdown Man
10th Feb 2012, 23:03
An interesting question, especially considering how cold Europe is at the moment. Our limit figures on an Embraer 190 are: -40˚C Take off and APU start; -70˚C in flight at high levels and -54˚C at lower levels; -20˚C minimum battery temperature; -18˚C minimum hydraulic temperature.
PM