sanket_patel
13th Feb 2002, 06:09
Hey guys, I just want to clarify some facts. . .Question:. .When wide body jets passes 13,000 feet and climbs, do the pilots change the pressure inside the cabin? And do the pilots change the mixture in the jet engines or nothing is done at all?
The pressure would generally be set to 'auto' and remain at a steady 8000' or so.
There is no mixture control on jet engines as the fuel isn't mixed with air until it is sprayed into the combustion chamber.
Cheers,. . /ft
Lucifer
14th Feb 2002, 19:53
When you climb, the cabin may 'climb' with the outside pressure to a point or start immediately on take-off, dependent on the aircraft type, and then will typically rise slower than the outside air pressure until it gets to 8000' or whatever is the cruising altitude of the cabin, while the aircraft has climbed to 30,000' plus. That is why it is barely perceptable to most people, unless you have a cold in which case it is harder for the pressure to equalise between your Eustachian tubes in you throat and ears, and the pressure outside your head. On descent, the reverse happens, again depending on type.
[ 14 February 2002: Message edited by: Lucifer ]</p>