Questions tagged [acs-pressurization]
Air conditioning system and/or cabin pressurization.
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How is the 737 NG/MAX able to operate at a pressure differential greater than that at which the cabin-pressure relief valve operates?
So I was reading about the 737's cabin-pressurization system, and then I came across these two bits of information:
Limitations
Max differential pressure:
Series
Max Diff
1/200's [sic]
7.5psi
...
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How exactly does the cabin pressure of an airliner change during ascent and descent?
At cruise altitude, airliners' cabin altitudes are usually at 6000-8000 ft, but how and when does it get there respectively how does it behave from ground until cruise altitude?
Is the cabin ...
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Source of Air in pressurised doors [duplicate]
In pressure cabins, pressurisation is very important. To keep the pressurisation level balanced, rubber seals are used.
Now what is the source of the air used to maintain this level of pressurisation?
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What would be the lowest possible cabin altitude (respectively, highest possible pressure on board) of an airliner in 1155 Pa exterior pressure? [closed]
How well does an airliner's pressurization work at extremely high altitudes (extremely low atmospheric pressure)? Does the system provide an absolute pressure differential, or is the differential a ...
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What happens if the crew do not set a FLT ALT in the cabin pressurization panel and leave it at zero but AUTO is still selected?
On the 737NG, will the cabin maintain a lower altitude than the plane or will cabin altitude equal aircraft altitude?
Will there be ANY cabin pressurization or none at all?
When will the HORN sound?
I ...
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Why is ram air not used for air conditioning in airplanes?
If the ram air is used for air conditioning, the airplane doesn't need a heat exchanger, cooling fan and cool the bleed air from compressor. So why do modern planes use bleed air cooled by ram air?
My ...
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How Cabin Pressures Are Selected?
The pilot puts the cruise altitude to the FMC and the plane auto adjusts the cabin pressure. I know that but I once heard the cabin pressure is set to three thousand feet.
Is it true? Why is the ...
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Which pressure mode of operation has the most stress on aircraft frame
So I am want to know which mode of pressurization has the most demand on the airframe
Isobaric mode
constant - differential mode
unpressurized
I hope to get an answer because I have an exam and ...
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How could the Helios 522 passengers have survived so long without oxygen?
I've noticed some strange inconsistencies regarding the documentation of Helios Airways Flight 522.
So first:
Autopsies on the crash victims showed that all were alive at the time of impact
But ...
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What are the adverse effects of keeping the PACKs on the A320 running with the LP air conditioning unit connected?
I had come across this statement will reading the limitations chapter in the FCOM. But once again there is no reasoning given for it I have also read the air conditioning systems chapter but can't ...
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