How do jet engines get enough air at high altitudes?

Jet engines work more efficiently at high altitude because the air is cooler. Hence, the larger the expansion of the air when heated, the faster the aircraft moves because it is the expansion of air that drives the turbines of the jet engine which generates more power for lesser fuel burn.

How do airplanes get enough oxygen?

The answer to this question is actually relatively simple: Airplanes get fresh oxygen to use in the cabin from the air outside the fuselage. By tapping into this near-limitless amount of oxygen, airplanes can create a safe and comfortable cabin environment for passengers.

At what altitude do jet engines stop working?

Flying at a typical altitude of 36,000 feet (about seven miles), an aircraft that loses both engines will be able to travel for another 70 miles before reaching the ground.

Why do planes go faster at higher altitudes?

The higher the better One of the central reasons behind aircraft altitude is that, as the air gets thinner with every foot climbed, planes can travel more easily and therefore move faster and burn less fuel, saving money.

Why do jets burn less fuel at altitude?

Aircraft burn less fuel for a given volume of air at higher altitudes because there’s less oxygen for it to burn. So, for a given air intake you have to lean the mixture back as you gain altitude. Aircraft fly faster at higher altitudes because lower air density means there’s less air drag.

What is the highest altitude you can fly without oxygen?

When the altitude of an airplane is less than 12,500 feet, there is no supplemental oxygen required for anyone in a private plane. From 12,500 feet to 14,000 feet, supplemental oxygen must be used by the required flight crew for any portion of the flight that is more than 30 minutes.

How does an airplane get enough oxygen?

Regardless of the airplane’s size or flight elevation, there’s plenty of fresh oxygen available in the surrounding air. By tapping into this near-limitless amount of oxygen, airplanes can create a safe and comfortable cabin environment for passengers. With that said, however, airplanes most process the air before feeding it into the cabin.

How does a plane engine work at high altitudes?

The engines compress the air to ignite the fuel and oxygen together, some of that air is bypassed around the engine though, some of that pressurized bypass air is brought into the cabin to bring up the cabin pressure. The problem is not the lack of oxygen, it’s that humans aren’t evolved to deal with the low pressures at those altitudes.

How is the air in an airplane taken from outside?

From the air outside for commercial aircraft. Air is taken from the engine compressors or from outside via air scoops, heated or cooled as necessary, and then pumped into the cabin. For special cases like jet fighters, the crew wears oxygen masks that mix outside air with oxygen from a refillable high-pressure…

How do airplanes breathe air?

At high elevations, air isn’t breathable because it contains too little oxygen. Therefore, airplanes are designed to process the outdoor air before pumping it throughout the cabin. During flight, air will enter an airplane’s jet engines. As the air passes through the engines, it will enter a series of machines where it’s further processed.