3 ms·

They do for a bit...

• dylan604 2y ago
  I doubt they are water tight, so eventually they'd fill with water. It's not like they're designed for space and need to be perfectly sealed
  • ipaddr 2y ago
    You have about 20 minutes depending on the plane and it being upright. The Hudson plane stayed up for 24 minutes.
  • wkat4242 2y ago
    They're certainly not airtight. There's intentional leaks in a pressure cabin. This is used to regulate the pressure, there is constant engine bleed air flowing in. If you allow more air than it leaks out the pressure will rise, if you lower the airflow it will drop. This mechanism also takes care of refreshing the cabin air. There's also some catalytic conversion going on to remove the high ozone content that's present at high altitudes. But I think it's pretty hard to ditch a plane without damaging the fuselage to some extent.