2006-09-03 01:47:31 · 11 answers · asked by aljo127 1 in Science & Mathematics ➔ Engineering
The inside of an airplane cabin is pressurized with oxygen at levels that you are used to breathing on the ground. When the plan has a decompression, oxygen masks come down because the air level at altitude is too thin for you to be able to breath.
2006-09-03 01:50:48 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The cabin is pressurised with bleed air from the engines. It has to be cooled (since it's usually at about 200 to 300C) but the outside air is fairly cold and het exchangers work well.
Airplanes do *not* carry tanks of oxygen. The only supplimental oxygen source on most airplane is the emergency O2 generator used to supply the cabin drop down masks. Typically they consist of a stick of sodium chlorate (which liberates oxygen as it burns) which is ignited by the action of pulling on the mask.
Doug
2006-09-03 09:30:12 · answer #2 · answered by doug_donaghue 7 · 0⤊ 0⤋
Hello. Oxygen levels are very low at high altitude. At 20,000ft and above,oxygen starts to fade. Oxygen levels inside the plane are maintained by means of specialized oxygen pump systems.Otherwise,if oxygen levels were not contained inside the fusolage,at an altitude of 20,000ft,the fusolage walls would implode.And extreme decompression would within milliseconds,blow a hole in the side of the plane,causing a rupture of the oxygen lines.For the reason of maintaining oxygen at high altitude,fighter pilots wear special oxygen hoses. Which are automatically pressurized. The oxygen system has to withstand many G-forces...
2006-09-03 16:05:55 · answer #3 · answered by Smooth Operator 2 · 0⤊ 0⤋
The airplane carries tanks oxygen. The plane does not utilize the air outside itself.
2006-09-03 08:51:17 · answer #4 · answered by stacey a 2 · 0⤊ 0⤋
The cabin on a plane is pressurized, so that the oxygen levels can be controlled, which is why you can't really open a window on plane without it creating sort of a vacuum effect.
2006-09-03 08:49:56 · answer #5 · answered by I Might Know 2 · 0⤊ 0⤋
Jetliners are kept at the same pressure as you'd get at 8,000 feet by pumping air from the engines into them. They're a little dry because the humidity is only 10% to keep the aluminum plane from corroding. The new 787 will be kept at 6,000 feet and 30 percent humidity because it has a stronger composite shell.
2006-09-03 09:47:45 · answer #6 · answered by nomadd1812 1 · 0⤊ 0⤋
All aircraft are fitted with a machine called an 'Oxygenator', this was invented by a german scientist in the 1930's, and without it air travel would not be possible.
2006-09-03 08:50:38 · answer #7 · answered by Anonymous · 0⤊ 0⤋
o2 is low due to low pressure in a pressurized cabin the o2 levels will be fine.
2006-09-03 08:50:15 · answer #8 · answered by Steven E 2 · 0⤊ 0⤋
Because the cabin is pressurized.
2006-09-03 08:49:18 · answer #9 · answered by Christopher C 3 · 0⤊ 0⤋
because the cabin is pressureized,that's why bags of chips and seals bags puff up
2006-09-03 14:02:09 · answer #10 · answered by ~CS~ 4 · 0⤊ 0⤋