There are many instances and things which are asked to be followed on the plane but we certainly do not always pay attention to it, just neglecting them to be part of the necessity.
Even I was ignorant enough the first time I traveled in a plane just taking it to be as a strange request of the flight crew. But what caught my attention was the thing I realized later.
Read on to the story to know more.
But certainly, their main purpose is not to let you have a look at the beautiful scene outside.
Because if there's an emergency during the day time with the cabin lights ON and the shades up, it becomes easier for a passenger to adjust to the outside light while evacuating. A sudden change in light can lead to a temporary blurred vision and the same applies to the night time when the cabin lights are dimmed.
With the shades up, the crew can assess the situation outside and accordingly plan the evacuation. Since during the emergencies, every second counts, it helps in deciding like which side is better to disembark from.
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Because even if the attendants fail to spot a problem, a passenger can help them to spot it out.
Open window shades can also help the emergency ground staff see inside the airplane.
There you go with all new knowledge!