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A comment on The World's First 20-Hour Airline Flight. Parent comment

Re:The World's First 20-Hour Airline Flight by Scoundreller on Thursday October 17, 2019 @10:39PM (#21288197)
> The 787 itself is a big factor in my comfort. The strength of the carbon fibre fuselage means that the cabin altitude is set to 5000 feet instead of the normal 8000 feet in other aircraft, and the air is recirculated more often I believe, which leads to less fatigue and high altitude problems.

Also, the 787 doesn't use bleed air from a compression stage to pressurize (risking the intake of various fluids). It just pressurizes fresh high-altitude air electrically.

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Re:The World's First 20-Hour Airline Flight by jcims on Friday October 18, 2019 @09:48AM (#21291309)
Whoa i didn't realize planes did that. Kind of makes sense, 30k HP compressor hanging off the wing and all, but still seems crazy.

Edit: Also explains why the cabin fills with jeta fumes when they start the engines while passengers are on board.

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Re:The World's First 20-Hour Airline Flight by simonebrunozzi on Friday October 18, 2019 @10:54AM (#21291890)
And if I'm not mistaken the humidity in the air is also higher than in other planes, increasing the comfort of passengers.
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Re:The World's First 20-Hour Airline Flight by Scoundreller on Friday October 18, 2019 @12:16PM (#21292632)
More pressure = more molecules per cubic foot, including water.
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Re:The World's First 20-Hour Airline Flight by cardiffspaceman on Friday October 18, 2019 @03:52PM (#21294549)
They tell me they don't have to worry about humidity causing rust because carbon fiber doesn't rust.

[They == people who once worked in aerospace]

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