What Does the Black Triangle Above Airplane Windows Signify?

Question

Ever pondered the query if somebody had excepted others, what was the black triangle on the upper part of some windows?

Answer 1

The black triangle indicates the most advantageous area of the plane incorporating the wing. It is employed by the crew so they can easily identify the area which requires an inspection of the engines, slats, or flaps in the event of an emergency, which is critical in the provision of time.

Comments

When I was on sia they put stickers on my seat instead of having a black triangle