OK, seems like cold weather is good for engine performance, atleast as far as power is concerned; i assume it's a due to the density of cold air, much like a car loves cold air in its combustion chambers to make the most efficient air-fuel burn. However, my imagination suggests to me (perhaps incorrectly) that a jet engine on a heavy airliner needs to run on with warm lubricants to prevent obvoius problems with cold oil, as well as warm critical parts to ensure proper operating tolerances. Greasespot mention earlier that "PW120's have Tanis heaters on the RGB and Compressor section to keep them warm in the Arctic," but I'm wondering if there are any warmup concerns for airliners starting up cold in normally chilly conditions, like a 20 degree F spring morning in the midwest, since this happens hunreds of times per day all over the country. If there is, is it the usual "idle for a while" doctrine that governs most heavy machinery, or are jet engines unique in this respect. Thanks for your replies..
Dassault Mercure: the plane that has Boeing and Airbus shaking in their boots.