What does a tiny hole at the bottom of an airplane window do?

Mr Wilkes, not sure where you pulled your info from, but as an Aircraft Maintenance Instructor on commercial aircraft, that little hole is NOT there to equalize pressure. To prevent fogging of the window, yes...but the pressure between the wall panel and outside skin is the same as inside the cabin. Sorry, but that is fact.

Maybe we should make use of these tiny holes in double pane windows elsewhere. to stop fog.

dai.laffin, as long as they don't put a " bleed hole " in the bottom of the boat. and I'm sure you can swim but if it goes down in the middle of the ocean it's a long way back to shore.

what an interesting/cool question!

I never even noticed the tiny hole. Actually that would of freaked me out...ha

I always take a window seat I never noticed it. Now Im aware an will.

Reno, hole? I have flown many times and never noticed a hole...but then, I usually fall asleep before we leave the runway

Thanks for the correct information.

Player #223713, I was told by a pilot it was for air pressure. ijs

Player #3817778, maybe close the laptop or windows and inspect a white wagon

I love this knowledge, thank you David

Wish one day I'll take a flight...It's been long time coming.

cannoli1966, There’s a bung hole in small boats !

dai.laffin, have you tried to fly 😅

dai.laffin, Can you swim from the middle of the ocean to the coast?

cannoli1966, most boats do take on small amounts of water. that's what the bilge pump is for

Reno, but you need a blanket