7 Aviation Facts from the Cabin

Interesting Aviation Facts

Anyone who flies regularly is familiar with many onboard procedures: window shades up, seatbacks upright, tray tables stowed – and shortly before landing, the lights are suddenly dimmed. But there is a specific reason behind many of the details in an aircraft cabin. For our Aviation Explained series, we are taking a closer look this time. Here are seven aviation facts about small markings, familiar announcements, and technical details you may encounter on your next flight.

1. What Does the Small Triangle Above Some Aircraft Windows Mean?

Perhaps you have noticed a small black or red triangle above certain aircraft windows. These markings identify window positions from which specific areas of the wing can be observed particularly well. Depending on the aircraft type, for example, the flaps, slats, or the wing itself can be inspected from these positions. The marking helps the crew quickly find the designated position in the cabin.

For passengers, the triangle is therefore a small visible detail of a much larger system: Even the position of a particular window can have a specific function in aircraft operations.

2. Why Do Window Shades Have to Be Open During Takeoff and Landing?

The request to open the window shades during takeoff and landing has a safety-related purpose. With the windows unobstructed, the crew can assess the situation outside the aircraft more quickly and identify possible abnormalities. At the same time, the eyes of the people on board can adapt more easily to the lighting conditions outside the cabin. This can help with orientation in the event of an evacuation.

For this reason, opening the window shades is part of the cabin preparation for takeoff and landing at many airlines – just like stowing certain items and adjusting the seats.

3. Why Are the Cabin Lights Dimmed?

Dimming the cabin lighting before takeoff or landing is also related to the adaptation of the eyes. If the normal lighting were to fail in an unusual situation, the eyes and visual perception would already be better adjusted to a darker environment. According to EASA, this can help the crew and passengers see better in low-light conditions during a possible evacuation.

The effect is particularly noticeable on a night flight: From inside a brightly lit cabin, the surroundings initially appear almost completely black. After some