A balance between operating costs and fuel efficiency is achieved somewhere around 35,000 feet, which is why commercial airplanes usually fly at that altitude. Most commercial airplanes cruise at an altitude of nearly 35,000 feet—around 6.62 miles (10,600 meters) in the air!

Why can an aircraft fly faster at 35000 feet than at 12000 feet?

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.

What is the highest altitude a plane can't fly?

Question: What is the highest altitude an airplane can fly? Answer: The highest commercial airliner altitude was 60,000 feet by Concorde. The highest military air-breathing engine airplane was the SR-71 — about 90,000 feet. The highest airliner flying today reaches 45,000 feet.

What happens if a plane flies too high?

If a passenger jet flies too high, it reaches a point called 'Coffin Corner'. This is the point at which the aircraft's low speed stall and high-speed buffet meet and the plane can no longer maintain its altitude which forces it to descend.

Can planes fly at 50000 feet?

The highest that a commercial airplane can fly is 45,000 feet. Most military planes fly at around 50,000 feet and sometimes higher. Some rocket-powered planes can fly as high as 100,000 feet but they are specially designed for this purpose.

Why do planes fly at 35000 feet?

How cold is it at 40000 feet?

Between 9,000 and 12,000 metres (30,000 and 40,000 feet), the cruising altitude of most jet aircraft, air temperatures range from −40 to −70 °F (−40 to −57 °C). Modern aircraft have sealed cabins and heaters to protect pilots and passengers from wind blasts and cold air.

Can airplanes fly over Mount Everest?

Tim Morgan, a commercial pilot writing for Quora says aircraft can fly above 40,000 feet, and hence it is possible to fly over Mount Everest which stands at 29,031.69 feet. However, typical flight routes do not travel above Mount Everest as the mountains create unforgiving weather.

Why do planes not fly over the Pacific?

Flying over the Pacific Ocean is avoided by most airlines for most flights because it usually doesn't make sense to fly over it when shorter and safer routes exist. The Pacific Ocean is also more remote and less safe than the Indian and Atlantic Oceans to fly over, resulting in a higher chance of a plane crashing.

What happens if a plane window breaks?

A broken window would cause the air inside to rush out rapidly, causing little objects like phones and magazines (and even larger ones, like people) to be carried away. This is all due to the high-pressure difference at high altitudes.

Why are plane windows round?

A round window has no corners so the pressure is evened out. They're also a stronger shape so are less likely to warp over time and cause faults. The Comet and other airlines introduced them to their planes as well us upping the thickness of the windows to the depth we have today on planes like Boeing.

Can a plane fly to space?

Many more spaceplanes have been proposed, but none have reached flight status. At least two suborbital rocket-powered aircraft have been launched horizontally into sub-orbital spaceflight from an airborne carrier aircraft before rocketing beyond the Kármán line: the X-15 and SpaceShipOne.

How high can a military plane fly?

Military Jets

What is this? Most fighter jets fly at an altitude between 45,000-51,000 feet, but some like the F-22 Raptor can fly as high as 65,000 feet by being able to ascend vertically.

Why do commercial planes fly so high?

Air resistance and fuel efficiency

One of the main reasons commercial airplanes fly so high is air resistance. You see, the higher you go above the ground, the thinner the atmosphere becomes, and therefore, the less resistance there is on the movement of the plane.

Can you breathe at 35000 feet?

Whether you are flying aboard a small Cessna or a jumbo-sized Airbus A380, you can breathe freely inside the cabin without wearing a mask or respirator. Even at a cruising altitude of 35,000 feet, you shouldn't have trouble breathing.

Is there oxygen at 35000 feet?

Natural availability of oxygen at 35,000 feet

In other words, there's ample air at 35,000 feet, and there is sufficient oxygen in it. In fact, there's even a reasonable amount of air at the altitude where the International Space Station operates!

How far can a pilot see at 35000 feet?

At 35,000 Feet: You can see 228 miles from a height of 35,000 feet. At 40,000 Feet: You can see 244 miles from a height of 40,000 feet.

What happens to the poop on a plane?

Aircraft lavatories typically store sewage in tanks, to be disposed off after the plane has landed. However, on the rare occasion that excrement does leak from a plane, it normally freezes instantly due to the cold temperatures at cruising height.

Do airplanes get struck by lightning?

Planes all over the world get struck by lightning almost daily. According to the US National Weather Service, an aircraft in commercial service is hit by a bolt of lightning on average once or twice per year. However, the frequency by which a specific aircraft will get hit depends on several factors.

Why don't we fly from Alaska to Russia?

Bering Strait Geography

The smaller of these granite islands is American. These islands can be used as a resting point during a crossing of the Bering Strait, however, being in the proximity of Russia's Big Diomede Island will reduce the chance of a successful crossing from Alaska to Russia.

Why do flights to Japan go over Alaska?

Commercial airlines typically fly a Northern curved route that goes over Canada and Alaska. Therefore, they spend less time over the Pacific Ocean, allowing for emergency landings if needed.

Why do pilots say Roger?

The International Civil Aviation Organization (ICAO) officially defines the word "roger" to mean "I have received all of your transmission." For example, a pilot would say "roger" in response to an advisory from Air Traffic Control.

Why do planes not fly over Antarctica?

No, planes don't fly over Antarctica because it is too remote and ETOPS regulation requires that aircraft are within a certain distance of a diversion airport at all times in case there are engine problems. As there are no diversion airports in Antarctica, routes must stay closer to other continents.

Why don't they fly over the North Pole?

The polar regions have special navigation concerns in the form of the magnetic fields which permeate them. These can make it difficult for planes to navigate because the polar areas interfere with magnetic navigational tools.

Why can't you take a helicopter to the top of Mount Everest?

The air is just too thin for most helicopters to generate enough lift to remain airborne. If the helicopter is equipped to reach that height, making the landing is still an incredibly delicate affair.