The mystery of the plane window: why do we need a hole in the glass?

No, it is not only in your window.

Inquisitive mind does not rest: how often during takeoff you staring intensely out the window and your eyes stayed on small a hole in the bottom. The first reaction – panic, your window is not sealed! Rest assured, this hole is in the adjacent window, and in any other.

Design of aircraft Windows is quite complex and consists of two stack and the air space between them. The outer glass is made of durable acrylic plastic and can withstand high loads, pressure drops and temperatures. The inner glass is designed for heat and sound insulation and has no special strength. If you change the pressure in the air space between the glass it could crack. To avoid this, the designers have invented a simple and ingenious way: they left a small opening through which air passes, and the pressure between the panes is always normal.

Besides, how many pleasant minutes you spent in flight, solving the mystery of the window and shooting hole in different angles?

The mystery of the plane window: why do we need a hole in the glass?

The mystery of the plane window: why do we need a hole in the glass?

The mystery of the plane window: why do we need a hole in the glass?

The mystery of the plane window: why do we need a hole in the glass?

The mystery of the plane window: why do we need a hole in the glass?