how high does a passanger airplane fly?

Question

i was just wondering because its such a beautiful sight looking down when i'm up there.

i wasn't asking how?????? but how high!!!!!

Answer 1

HOW HIGH DOES AN AIRPLANE FLY?
First - no higher than the air. If it flies above the atmosphere (air) then it's not an airplane, it's a spaceship.
Second - some passenger planes can fly higher than others. The limit depends on the plane's wing size and lift, how fast it can fly, and on the air itself. Cold air is denser than warm air and that helps planes fly higher.

A simple answer is that most jet passenger planes don't fly higher than 35,000 ft - and that's usually just on the long flights (9-10 hrs long). It takes so much fuel and time to get to that altitude that it's cheaper on short flights to stay at lower altitudes, generally 25,000-30,000 ft.

Hope that helps. And it is pretty to look down from up there - I recall one flight from Detroit to Tokyo that took us over the North Slope of Alaska. Got to see polar ice, the sea and seashore from 35,000 ft.

Answer 2

There is something called a supercharger which is like a compresor which feeds more air to the engine. The p-38 has dual superchargwers, so it flew higher than the BF-109 and FW-190. On WW2 bombers, oxygen was supplied by tanks. Pressurized cabins create a air bubble where it is compressed, so the air is the same as sea level

Answer 3

The lift force, lifting force or simply lift is a mechanical force generated by a solid object moving through a fluid.[1] Lift is the sum of all the fluid dynamic forces on a body perpendicular to the direction of the external flow approaching that body. The mathematical equations describing lift have been well established since the Wright Brothers experimentally determined a reasonably precise value for the "Smeaton coefficient" more than 100 years ago.[2] But the practical explanation of what those equations mean is still controversial, with persistent misinformation and pervasive misunderstanding.[3]

Sometimes the term dynamic lift or dynamic lifting force is used for the perpendicular force resulting from motion of the body in the fluid, as in an aerodyne, in contrast to the static lifting force resulting from buoyancy, as in an aerostat. Lift is commonly associated with the wing of a aircraft. However there are many other examples of lift such as propellers on both aircraft and boats, rotors on helicopters, sails and keels on sailboats, hydrofoils, wings on auto racing cars, and wind turbines. While the common meaning of the term "lift" suggests an upward action, the lift force is not necessarily directed up with respect to gravity.

Physical explanation
There are several ways to explain lift which are equivalent — they are different expressions of the same underlying physical principles:


Reaction due to deflection
Lift is created as the fluid flow is deflected by an airfoil or other body. The force created by this acceleration of the fluid creates an equal and opposite force according to Newton's third law of motion. Air deflected downward by an aircraft wing, or helicopter rotor, generating lift is known as downwash.

It is important to note that the acceleration of air flowing over an aircraft wing does not just involve the air molecules "bouncing off" the lower surface. Rather, air molecules closely follow both the top and bottom surfaces, and the airflow is deflected downward when the wing is producing lift. The acceleration of the air during the creation of lift can also been described as a "turning" of the airflow.

Many shapes, such as a flat plate set at an angle to the flow, will produce lift. This can be demonstrated simply by holding a sheet of paper at an angle in front of you as you move forward. However, lift generation by most shapes will be very inefficient and create a great deal of drag. One of the primary goals of airfoil design is to devise a shape that produces the most lift while producing the least Form drag.

It is possible to measure lift using the reaction model. The force acting on the wing is the negative of the time-rate-of-change of the momentum of the air. In a wind tunnel, the speed and direction of the air can be measured (using, for example, a Pitot tube or Laser Doppler velocimetry) and the lift calculated. Alternately, the force on the wind tunnel itself can be measured as the equal and opposite forces to those acting on the test body.

Answer 4

Between 30,000 and 35,000 feet in the US, and I think the exact altitude is different for different directions - a good way to prevent mid-air, head-on collisions I would say.

Answer 5

Most flights are in the 30 to 40,000 foot altitude.

Answer 6

25,000 to 35,000 feet. Some might go as high as 40,000 feet.

Answer 7

Lift vs drag...You must have lift from the wings but it must be controlled by drag...simple answer,look it up on the net for a more detailed answer...good luck

oh yea edit your question after we answer it and make us look like idiots...lol