Why are they asked to raise the window shades during takeoff and landing?

Why are they asked to raise the window shades during takeoff and landing?

 Opening the window shade is part of a long process of preparing the aircraft cockpit for emergencies. The crew has only 90 seconds to evacuate all passengers in the event of an accident. With minor adjustments for aircraft size and number of passengers, the evacuation process takes the same amount of time. Therefore, in order to meet these very 90 seconds, the team prepares the plane in advance. In addition, the emergency exit seats are of particular importance - they can only be occupied by adults. They are advised to read the safety instructions so that they are ready to assist the crew in an emergency.

The window shades are raised during landing and take-off, as these phases of flight are considered the most dangerous. As you know, the greatest number of accidents occurs just during takeoff and landing, so passengers are asked to raise the curtains, bring the seats upright, fasten their seat belts, etc. In case something goes wrong, the team will have time to react quickly.

In addition, you need to consider the following:

- Passengers are curious. And this is an additional 100-300 people watching the take-off / landing process and ready to instantly report what seemed strange to them.
- In the event of an emergency, every second counts. With the curtains raised, the crew can easily see the conditions overboard and make the best possible evacuation decisions.
- In the event of an accident, people must be prepared. Therefore, during the day, opening the curtains allows passengers to get used to just this kind of lighting. In the event of an emergency evacuation, passengers will not spontaneously change the light conditions in the cabin, which in turn avoids a temporary shock. The same applies to night flights: the curtains are open and the lights in the cockpit are dimmed. This helps the emergency services outside to see what is happening inside.
The rules, of course, may differ depending on the airline, but in most cases, the instructions require that the curtains be open.

Источник: https://travelask.ru/blog/posts/2189-pochemu-vo-vremya-vzleta-i-posadki-samoleta-prosyat-podnimat