Originally Posted by mtacchi
The B747 regulates the tempature of the aircraft based on the tempature of the coldest "zone". There are 5 zones on aircraft, usually getting colder as you go aft.
Hi, Marc.
I haven't got your reply yet.
In speaking of regulating temperature, don't FA control it depending on the temperature of each zone or each cabin(F/C/Y)?
As you see panel screen, the temperature is designed to be set each zone or each cabin independently.
I guess not based on the coldest zone in passenger aircraft.
Originally Posted by mtacchi
As far as fuel saving, you are correct. There are 3 airconditioning PACKS on the aircraft, they use outside air and require an air scoop door to be open, this causes drag and increases fuel consumption. Normally, in cruise we (my operation NOT BA) would have one pack one or maybe 1 and a half pacs (some B747 aircraft have a half open feature). Fuel savings can be as high as 2% by minimizing pack useage.
Got a question.
Why do they need air conditioning, you mean to cool the aircraft right?
Since the outside temperature is low, is there any reason to cool it?
Originally Posted by mtacchi
That being said, it could have been broken too. I have no way of knowing why they had it so hot. Usually upper deck is quite reasonable.
Marc