Tiny holes on airplane windows

If you’ve ever sat in the window seat on a flight, you’ve probably noticed the tiny hole at the bottom of the window. We asked the FAA why it’s there, and they assured us it’s totally safe. Here’s why there are tiny holes in airplane windows.

Produced by Will Wei

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Author Since: Sep 20, 2018

  1. The video misuses the term "fail safe" when it describes the middle window pane as a backup in case the outer window pane fails. The term "fail safe" does not refer to a backup or redundancy feature; it is an engineering concept in which a system is designed to go into a safe condition in the event to failure. The classic example are the air brakes on a train: air pressure is used to hold the brakes OFF the wheels, so if the system fails and air pressure is lost, the brakes press against the wheels and stop the train; a brake system failure puts the train into a safe condition; in other words, the system "fails safe."

  2. the tiny holes are incase the plane lands on water so only a small amount of water would enter the cabin , if the holes were bigger the cabin would fill up before the passenges could escape 🙁

  3. This also doesnt explain it fully. How does the middle panel act as a fail safe by having a hole? Wouldnt it act better as a fail safe WITHOUT the hole? Like you know, as you said, to maintain the pressure differential. You maintain pressure differential by NOT LETTING AIR OUT.