Why cant u open the windows of a plane?

Question

or what would happen if u did??

Answer 1

If you are talking about a large, pressurized airliner, its due to the differences in air pressure.
When you are cruising at anywhere above about 12,000 feet, the density levels and partial pressure of the oxygen at that altitude and above makes it difficult to sustain life. Most people would be ok at 12,000, but when you get up to much higher levels, a condition called hypoxia sets in. At flight levels above 20,000 feet, its almost immediate and can cause blackouts and eventual death unless an immediate descent is made in the event of a loss of cabin pressure. Also, the outside temperature is well below freezing at those altitudes and the wind blast at 300-600 knots could only be imagined.
In smaller, light aircraft, they recommend not opening the window above about 90-100 knots as the wind blast is strong, you could conceivably knock the window loose from its mountings, and the wind entering the cabin can actually change the handling characteristics of the aircraft.

Answer 2

At high altitude the air pressure and oxygen levels are very low. If you opened the window on a pressurized plane that high you and everything not bolted to the plane would be sucked out of the window.

Um, even if you are larger than the window the suction pressure would "make you fit".

Answer 3

For commercial airliners, business jets and pressurized cabins opening a window as others have said would lower the air pressure and could potentially cause passengers to pass out or worse. In small general aviation aircraft (such as a Cessna 172) you can open the windows in flight with usually no problem (there are sometimes speed restrictions for doing so). I have opened the window on many flights in small aircraft.

Answer 4

For the same reason that there are no windows to open in a submarine, very bad things would happen.
In an aircraft (I assume you mean a commercial jet), if you'd open a window, there would be violent decompression, and EVERYTHING that's not nailed down would try to exit the aircraft through the opening in a BIG hurry!

Answer 5

Assuming you are serious and not just fishing for stupid answers....You can open the windows on a plane as long as it is not pressurized. If it were pressurized and you managed to get one open, it would cause a sudden loss of pressurization. If you were well above 10,000 feet you would not be conscious long from lack of oxygen.

Answer 6

Some of the things you should take into consideration include: l. Temperature- Drop the temperature 3.5 degrees for every 1000 feet. If on the ground the temperature is standard- 59 degrees then at 30,000 feet it is -44. Pressure is the big one. you could not breathe because the air gets so thin, hence, pressurized cabins over 10,000 feet.

Answer 7

Airliners are pressurized (usually at about the same pressure as 8000ft). If you were to open a window, the plane would rapidly decompress and if you did not have supplemental oxygen to breathe, you would die. There is not enough breathable oxygen at the heights at which the planes fly. You, and the crew (including pilots) would most likely die if there was rapid decompression and you did not get your oxygen masks on.

Answer 8

The cabin inside has a precise amount of pressure in it to make the air suitable for us to breath and live in. It also effects how the plain flys.

Answer 9

Hey baby it's cold outside. About -57C at thirty six thousand feet on a standard day. Brrrrrrrrr.

Answer 10

all the air would leave the plane and it could kill you cuz the air up that high is too thin to breath