# Airline pilots: Pressure differential

**URL:** <https://boards.straightdope.com/t/airline-pilots-pressure-differential/792630>\
**Category:** Factual Questions\
**Created:** [August 2, 2017, 3:34pm UTC](https://boards.straightdope.com/t/airline-pilots-pressure-differential/792630 "2017-08-02T15:34:18Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![DSYoungEsq](https://avatars.discourse-cdn.com/v4/letter/d/c6cbf5/32.png) [@DSYoungEsq](https://boards.straightdope.com/u/DSYoungEsq)\
**Post date:** [August 4, 2017, 4:24pm UTC](https://boards.straightdope.com/t/airline-pilots-pressure-differential/792630/21 "2017-08-04T16:24:01Z")

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> [@LSLGuy](#):
>
> Correct. Lest the cabin be crushed like hose mythbusters episodes with the railroad tank cars. There are good sized simple spring-loaded valves on the skin that will be pushed open inwards by the outside pressure if it’s even a smidgen higher than that inside.

You act like a lot of thought or engineering goes into this stuff. 😃

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