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Why do you suppose that airplane windows are smaller than bus windows?
Wiki User
∙ 12y ago
I suppose they're smaller because they have to endure harsh and extended periods of change in pressure that windows on a bus don't. I suppose that to make an airplane window as large as a bus window that could endure the pressures, the window would have to be made out of either a very heavy material, or a very expensive material, which in both cases would make them prohibitive for installing on an airplane.
Wiki User
∙ 12y ago
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Why do you suppose airplane window much smaller than bus windows?
to preserve pressure at higher altidudes.
Why you suppose that airplane windows are smaller than bus windows?
Airplanes are often pressurized. A large window would be excessively difficult and expensive to make it strong enough to not blow out. So they use small windows on airplanes.
Why do are airplane windows are smaller than bus windows?
Aircraft windows need to resist severe air pressure changes and pressure differential.
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Can 50 mph winds break windows?
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Why are plane windows smaller than bus windows?
Airplane windows are smaller than bus windows because the cabin where the people sit is pressurized. This pressurization keeps a high enough pressure so that people in the airplane don't need to use oxygen masks. However, this pressurization equals about 9.0 pounds per square inch (PSI). This 9 pounds per square inch is a pressure that pushes outward on all parts of the airplane cabin. On metal this is not a problem, but with windows, made of a material that can be seen through, it's beneficial to keep this pressure low so that the window won't crack. If you think about the average airline window, it's about 120 square inches (a size of about 12 inches by 10 inches), and if each inch has 9 pounds of pressure pushing out on it, that equals (120 x 9 = 1080) 1,080 pounds of pressure on that one window. That's over half a ton! So, with a much larger window, like in a bus, that pressure would be too great and the window would shatter and blow out, making it very drafty inside the airplane! I hope this helps.
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Why are airplane windows smaller than bus windows?
Aircraft are pressurized so that they can fly higher without the need for passengers to wear oxygen masks. They are generally pressurized to 5-8 psi. The force on an aircraft window approx. 12" x 12" would be 720 - 1152 lbs. If they had a bus-sized window (about 4 feet x 4 feet), the force on the window would be 11,520 - 18000 lbs.
