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There are some questions that each of us has asked ourselves at least once when boarding an aircraft. Today we will talk about those questions that may even in some cases seem obvious, but which in reality hide behind much more subtle and conceptually important principles.

Whether you are an aspiring pilot or an already established pilot, or you are simply interested, today we will try to answer you, revealing some of the facts that you (maybe) do not know and have never known about the world of airplanes.

    1. WHY DO WINDOW SHADES HAVE TO BE UP DURING TAKEOFF AND LANDING?

Keeping the shades open would guarantee a certain "quickness of reflexes" in an emergency situation, allowing for instant notification of any dangerous situations. In this way, therefore, the passengers themselves have the opportunity to observe the external conditions, offering valuable help in case they see something of unusual. Not only that, leaving the window blinds open, allows any rescue teams to be able to assess the conditions of the cabin, while remaining outside, before intervening, in order to define the best way to do it.

    1.  WHY DURING TAKE-OFF AND LANDING THE TABLES HAVE TO BE CLOSED AND THE SEATS HAVE TO BE STRAIGHTEN?

You're finishing your favorite series, you've started reading the first sentence of the last page of the book that you loved or more, you're still sleeping blissfully, and the flight attendant arrives to ask you to raise the table and to put your seat upright. No, it's not because they’re rude, it's just for safety. In fact, in the event of an emergency and therefore of a possible plane evacuation, these two actions, if not taken, could block one from evacuating the plane and could constitute a serious obstacle for the rapid exit from the aircraft.

    2.  WHY ARE THE LIGHTS REDUCED DURING TAKE-OFF AND LANDING?

The reason here too is very simple: safety. The take-off and landing phases are the most delicate of a flight. It can take the human eye between 10 and 30 minutes to fully adjust to a newly-dark setting. By dimming cabin lights, passengers and crew are given crucial extra time to adjust to the lower-light conditions. This can be a critical aspect if an aircraft must be evacuated at night. Indeed, the period of time that it can take human eyes to calibrate to low-light conditions could theoretically make a crucial difference to one's chances in an emergency.

    3.  WHAT ARE THE WHITE TRAILS LEFT BY AIRCRAFTS IN FLIGHT?

Every day, white trails left by planes can be seen in the sky. But what are they? These are classic exhaust jets and are the result of the combustion of the hydrogen contained in the aircraft fuel which, when it collides with the outside temperature (which is very low!) cools down to become water vapour, thus creating the classic cloud effect.

    4.  WHY ARE THE SEATS IN THE ECONOMY CLASS SO NARROW?

Economy Class is the cheapest class and usually occupies the majority of available seats on the plane. This happens because centimeters are "eaten" for each row, in order to be able to make more, and therefore obtain more, seats. In fact, if you notice, not all the windows are aligned with the seat!

    5.  WHAT IF LIGHTNING STRIKES AN AIRPLANE?

Did you know that lightning strikes planes regularly? However, it is extremely rare that this can cause an accident. The main reason is that aircraft are built from a metal structure, i.e. an electricity conductor, which allows the current to flow on the surface of the fuselage not reaching the interior, and then continue its run in the vacuum.

    6.  WHY DO AIRPLANES HAVE A RED AND A GREEN LIGHT ON THE WINGS?

Each aircraft has a red light on its left wing and a green light on its right wing. This allows other aircraft to understand if the plane is approaching or moving away and thus avoid unpleasant encounters…

    7.  WHY ARE THE PORTHOLE OVAL?

But before explaining why, did you know that in the 1950s they were rectangular? They were changed years later, because you know: where there is a corner there is also a weak point. In fact, the square windows having to withstand stresses up to 3 times stronger than the other parts of the structure, are more subject to breakage and cracks. The oval shape counteracts the decompression force in the best possible way and prevents the formation of cracks in the corners. That's why the rounded shape of the porthole!

    8.  HOW MUCH OXYGEN IS IN THE MASKS?

Inside the masks there is oxygen for about 15 minutes, a sufficient period of time for the pilot to be able to bring the aircraft back to a lower altitude where one can breathe easily.

    9. WHY SHOULD I PUT THE PHONE INTO AIRPLANE MODE?

Even if we now live 24/7 with phones, it's important to respect the request to turn off and put the smartphone in airplane mode. And do you know why? Safety, always for Safety.  In fact, the various radio links of an electronic device could create interference with aircraft systems, electronics, or communications, which are essential for carrying out the flight in the best (and safest) possible way. In short, if one were to forget, probably nothing would happen, but think if all the passengers on the same flight did not respect this procedure...


We have listed only 10, but in reality, there are many curiosities that are hidden behind the planes!
If you know of others, let us know via our social profiles 

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