The hidden purpose of airplane window triangles revealed

The most observant travelers might have noticed tiny black triangles above some airplane windows. What do they mean? Let's clear up any doubts.

When traveling by plane, it's worth taking a close look around the cabin. You might notice something interesting. Many travelers pay attention to small holes in airplane windows, which play a crucial role.

As it turns out, airplane windows are designed to mitigate pressure differences between the interior of the aircraft and the outside environment. Small holes serve to regulate interior pressure, making the journey more comfortable for passengers. Additionally, these holes allow moisture to escape from the cabin, preventing window fogging.

Small black triangles above some windows, on both the right and left sides of the plane, are something travelers often notice less frequently. You have to be observant to spot them. We managed to notice them on a Swiss Air airplane. Let's explain the secret of the black triangles.

In short, the triangular marks indicate the best vantage points for viewing the airplane's wings.

"In some types of commercial airplanes, there are such triangles, usually two, sometimes four. One on each side at the level of the leading and trailing edge of the wings. They indicate the points where the crew has the best view of the wings during visual inspection. This means they do not have to search long for the right window in the cabin," explained an expert from Lufthansa in an interview with the German newspaper "Bild."

For seats in rows where the triangles are located, passengers can sit just like at any other seats. They can be assured that their view of the airplane wings is excellent, making any recordings and photos exceptional.

Source: "Bild"/WP