Airline Pressurization

[john smith]

What is typical cabin altitude pressure for airliners at cruise
altitudes?

[Michelle P]

5000 to 8000 feet depending on the model and cruising altitude.
Michelle

john smith wrote:

>What is typical cabin altitude pressure for airliners at cruise
>altitudes?
>
>

[Ron Natalie]

john smith wrote:
> What is typical cabin altitude pressure for airliners at cruise
> altitudes?
Never above 8000 feet

[Garner Miller]

In article >, Ron Natalie
> wrote:

> john smith wrote:
> > What is typical cabin altitude pressure for airliners at cruise
> > altitudes?
> Never above 8000 feet

Depends on the airliner, of course. Some turboprops have the cabin as
high as 10,000 feet at their service ceiling. That's the highest I've
seen.

--
Garner R. Miller
ATP/CFII/MEI
Clifton Park, NY =USA=
http://www.garnermiller.com/

[Ron Natalie]

Garner Miller wrote:

> Depends on the airliner, of course. Some turboprops have the cabin as
> high as 10,000 feet at their service ceiling. That's the highest I've
> seen.
>

Not anything certified in the transport class.

[Bob Moore]

Ron Natalie > wrote
> Garner Miller wrote:
>
>> Depends on the airliner, of course. Some turboprops have the cabin as
>> high as 10,000 feet at their service ceiling. That's the highest I've
>> seen.
>>
>
> Not anything certified in the transport class.

Following up.............

Section 25.841: Pressurized cabins.
(a) Pressurized cabins and compartments to be occupied must be equipped to
provide a cabin pressure altitude of not more than 8,000 feet at the
maximum operating altitude of the airplane under normal operating
conditions.

(1) If certification for operation above 25,000 feet is requested, the
airplane must be designed so that occupants will not be exposed to cabin
pressure altitudes in excess of 15,000 feet after any probable failure
condition in the pressurization system.

(2) The airplane must be designed so that occupants will not be exposed to
a cabin pressure altitude that exceeds the following after decompression
from any failure condition not shown to be extremely improbable:

(i) Twenty-five thousand (25,000) feet for more than 2 minutes; or

(ii) Forty thousand (40,000) feet for any duration.


Bob Moore

[Garner Miller]

In article >, Ron Natalie
> wrote:

> Garner Miller wrote:
>
> > Depends on the airliner, of course. Some turboprops have the cabin as
> > high as 10,000 feet at their service ceiling. That's the highest I've
> > seen.
> >
>
> Not anything certified in the transport class.

Correct. The OP said "airliner," not "transport category," though.
Since there are still plenty of commuter category airplanes flying
around for Part 121 airlines, it seemed relevant.

--
Garner R. Miller
ATP/CFII/MEI
Clifton Park, NY =USA=
http://www.garnermiller.com/

[tom418]

Depends on where you're flying to.

Sometimes, you'll find yourself flying with a cabin altitude well above
13,000 when approaching "the other" J.F.Kennedy Airport :)
"Garner Miller" > wrote in message
...
> In article >, Ron Natalie
> > wrote:
>
> > john smith wrote:
> > > What is typical cabin altitude pressure for airliners at cruise
> > > altitudes?
> > Never above 8000 feet
>
> Depends on the airliner, of course. Some turboprops have the cabin as
> high as 10,000 feet at their service ceiling. That's the highest I've
> seen.
>
> --
> Garner R. Miller
> ATP/CFII/MEI
> Clifton Park, NY =USA=
> http://www.garnermiller.com/