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The stages of take-off and landing in air transportation account for the largest number of emergencies. During landing or takeoff, flight attendants need to be especially careful to observe what is happening overboard in order to promptly report a possible emergency situation to the pilots. Security in these moments is always given close attention. So, the window shades open because:
- … The passenger's eyes must become accustomed to natural light - then he will see better in the event of an emergency. For the same reason, during takeoff or landing, the main lighting in the cabin is also turned off.
- ... flight attendants or even passengers can see what is happening overboard. This will allow you to promptly inform the crew about the occurrence of an emergency situation or assess the position overboard during the evacuation. For example, to see if there is a fire or not. In addition, in the event of an emergency landing, rescuers will be able to see what is happening in the cabin through the windows.
- … It's easier for passengers not to get hurt. Indeed, with a very hard landing, the plastic curtain can split and damage your face with fragments.
- ... it helps to orientate in space. When the window is open, a person sees how the plane lands and in what position it is relative to the surface of the earth. If the window were closed, the passenger could easily imagine that the plane is making a loop in the air or simply falling.
Can the windows themselves crash during a hard landing?
The porthole is, as a rule, a two- or three-layer glass unit. In this case, two glasses at the same time are power glasses, that is, capable of withstanding pressure drops. The windows are designed in such a way that they are able to withstand the pressure between the passenger compartment and the external atmosphere, comparable to a load of up to 4 tons. The inner glass of the porthole, which is visible to passengers inside the cabin, is decorative. Its damage will not affect the safety of your stay on the plane.
Why are portholes streamlined?
This is not a design idea, but a security measure. Rounded windows, as the history of aviation has shown, better hold and distribute pressure throughout the structure. The history of jet aircraft is especially striking proof of this. On jet airplanes, increased demands are made on portholes due to speed: there are many small windows and fewer large ones, so the design becomes more reliable.
In the 1950s, passenger jet aircraft construction was just beginning. The Comet of the British aircraft manufacturer De Havilland was the first airliner to perform passenger transportation, and was a state-of-the-art passenger aircraft that had a pressurized cabin. However, the first two "Comets" were in for a sad fate - in 1954 they collapsed right during the flight. 56 people died. The square windows were later named to blame!
Interestingly, however, the famous Soviet supersonic passenger aircraft TU-144, developed by the Tupolev Design Bureau in the 1960s, had tiny quadrangular windows. The design features of the windows were explained by A. Tupolev as follows: "The dimensions and shape of the windows are a way to reduce the external pressure in the supersonic regime."
What is an airplane window
The airplane porthole is a 2 / x-3 / x layer glass unit.At the same time, both glasses are power glasses, that is, capable of withstanding pressure drops. The windows are designed in such a way that they are able to withstand the pressure between the passenger compartment and the external atmosphere, comparable to a load of up to 4 tons. The inner glass of the porthole, which is visible to passengers inside the cabin, is decorative. Its damage will not affect the safety of being on the plane. And the window shade is a fragile thing. It can break into small, sharp particles and injure you.
According to flight safety rules, during taxiing, takeoff and landing of the aircraft, the window shades must be open. The fact is that it is at these stages of air transportation that the largest number of emergencies occurs. Therefore, the utmost attention is paid to safety.
Why it is necessary to open windows when taking off / landing an aircraft
First, your eyes need to get used to the natural light so you can see better in an urgent emergency. You have probably noticed that the main lighting in the cabin is also turned off during takeoff / landing.
Secondly, flight attendants or even passengers can see what is happening overboard. This will make it possible to promptly inform the crew about the occurrence of an emergency situation or assess the position overboard during the evacuation. For example, to see if there is a fire or not. In addition, in the event of an emergency landing, rescuers will be able to see what is happening in the cabin through the windows.
Thirdly, as mentioned earlier, in the event of an emergency, the window shade can break and cause bodily harm.
Thus, you and I have figured out that the window shades during takeoff and landing of the aircraft must be open to provide air passengers with greater safety. Well, you can also enjoy the beautiful views when landing or taking off the plane.
And for dessert for you today, a small Christmas show from Air Baltic :).
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