Air Travel Myths

[FatLazyContractor]

[/CODE]

Have you taken a vow of silence on the subject big boy, you are usually a wealth of information on that, very, subject?

At times it is fun to sit back on a high chair, smoke a cigar and watch the ladies fight

[clearedforlanding]

At 30000 feet the air pressure inside the cabin is under 5 pounds per square inch, and inside the cabin it is nominally 14 pounds per square inch (actually somewhat less, but way higher than 5 lb / sq inch)



So given the area of a cabin door, that means there is several tons of air pressure pushing the cabin door outwards.

*outside, not inside. You'd kill everyone.

As for the rest, close, but not the prize, as in my comment above above, these are the actual figures. A cabin pressure of 14.696 psi would be sea level. To keep the cabin pressure in the range of 14 psi would put too much stress on the fuselage of the aircraft. When set to auto the pressure is adjusted to stop peope's ears hurting & fuselage stress in asc & desc. The pressure differential varies according to altitude/aircraft & at 39,000 feet 11.5psi would be correct.

At a cruise of 35,000 feet we need to keep the cabin pressure below 75.8 KPA (11 PSI), the ambient pressure at 8000 feet. A main door slides on the horizontal plane and are locked & sealed on the vertical. At 35,000 feet, the ambient pressure is about 24.8 KPA (3.6 PSI) if the average door is 8 square feet, the pressure exerted on the door is about 4.25 tons.

The reason for the 8000 foot cap is to avoid nasties like altitude sickness, decompression sickness, hypoxia etc.

Newer commercial jets are somewhere in the range of 6-7000 feet equivalent cabin pressure & some executive jets are in the 4000 foot range.

[MrMarkyMark]

At times it is fun to sit back on a high chair, smoke a cigar and watch the ladies fight

The new movies arrived, then

[FatLazyContractor]

The new movies arrived, then

I was reminded of you and MF when I watched the elephant scene in the movie Grimsby

[clearedforlanding]

I well remember being on a Leeds - Dublin flight one morning, gliding in very gently past the Hill of Howth, wave to Bono, and someone hadn't set their phone to flight mode, caught a signal and receives a call, ring tone being 'WAIL, WAIL, PULL UP; WAIL, WAIL, PULL UP.....'

I thought it very British (and/or Irish) that no one batted an eyelid.....

It is also very British for the PIC to accept being called a 'retard' repeatedly on landing.

[MrMarkyMark]

I was reminded of you and MF when I watched the elephant scene in the movie Grimsby

You need to lay off whatever you are ingesting, big man.

It seems the "Yorkshire water" is not enough to wash those impurities through

[northernladuk]

I bet MF has lots of stories about dead bodies in the seat next to him in First Class. I bet he doesn't mention how many were put there dead or how many died of boredom and despair while he was recounting his tales.

[FatLazyContractor]

I bet MF has lots of stories about dead bodies in the seat next to him in First Class. I bet he doesn't mention how many were put there dead or how many died of boredom and despair while he was recounting his tales.

Aptly, isn't the thread named 'Air travel myths' ?

[MrMarkyMark]

FTFY

I bet MF has lots of stories about dead prostitutes in the seat next to him in First Class.

Oh, hang on, he isn't a truck driver, is he?

[MarillionFan]

Sorry I have been unable to respond to this thread.

I was flying.