How high the airplanes fly?

Answer 1

depends on the plane,

SR-71 & U-2 when they used to fly, it was above 60,000ft

Fighters 100 to 51,000

new business jet, like lears will fly 40,000 to 50,000

most airlines fly 30,000 to 41,000

Answer 2

The altitude at which a given aircraft will be able to fly is dependent on these factors.
Wing aspect ratio. The greater the ratio the more lift the wing can produce increasing the amount of weight the wing will be capable of lifting. If aspect ratio becomes to great, the increased drag reduces max maintainable air speed and will begin to lower an aircrafts ceiling.
Aircrafts total weight. The heavy the aircraft gets, the more work the wings have to do in order to produce enough lift to ascend the aircraft.
Power Plant. As one increases in altitude gases spread out thin. Less oxygen per part of unit with increased altitude. As long as there is enough oxygen to maintain combustion in the power plant, you'll be able to fly.
Aircraft's Air Speed. The greater the speed, the more gas molecules flowing over the airfoil (wing), producing pressure to lift the wing.
There is no specific altitude for aircraft in general. This number changes with the engineering of all the different types of aircraft based on these technical factors. Keep in mind ATC (air traffic control) has the final call on how high an airplane will fly, providing there is no immediate emergency that dictates otherwise to the pilot .

Answer 3

It depends. If it's an airplane that holds over 100 passengers and the flight is longer than 2 hours, It usually cruises at around 30,000-36,000 feet in the air.
That's about 6-7 miles up.
If it's a smaller plane for a shorter flight, you would most likely fly around 20,000-28,000
feet high. About 4-5 miles up.
If it's an even smaller plane for a very short flight, less than 30 minutes on a propeller or turboprop airplane, You may bruise about 10,000-18,000 feet high. That's about 2-3.5 miles up.

Answer 4

If it is a pressurized jet the two engine service ceiling ranges from 37,000 to 51,000 feet. Size of aircraft has no bearing. An older 737-200 model has a 37,000 ceiling and a Lear 31A and Lear 45 has a 51,000 ceiling.
Turboprops have max ceilings of anywhere between 25,000 and 35,000 feet once again depending on the aircraft.
One of the most common limitations put on an aircraft ceiling has nothing to do with the normal operation of the plane at high altitides, but rather how long it takes to do an emergency decent to 15,000 in case of rapid depressurization. Factors include spoilers etc.

Answer 5

Do you mean when normally traveling, or how far up can they fly?

How far up (altitude) is controlled by the wing area, airspeed (compared to ground spped it gets faster the higher you go), and how the engine "breathes".

Technically the space shuttle is an airplane, but it takes it's own oxygen along to "Breathe", - since the higher you get the less oxygen there is in the air! And all engines require oxygen in order to "burn" the fuel they use!

The pilots and passengers need a little too!

Answer 6

An aircraft called SpaceShipOne, flew to an altitude of 100 km twice to win the X-prize.

The X-15 met the US criterion for spaceflight by passing an altitude of 80km (50 miles). One was as high as 62.1 miles (100 km).

The SR-71 Blackbird could fly at 85,000 feet at a speed of 2,200 mph.

To answer this, the Soviets built the Mig-25 Foxbat. This aircraft was capable of Mach3 and cruised at 90,000 ft. In 1977, one flew to a record altitude of 123,524 feet. You can fly in one of these aircraft for a hefty sum of cash.

Check out http://www.incredible-adventures.com/edgeofspace.html

Answer 7

Most fly at about 30,000 Feet, close to 5 miles high.

Answer 8

35000 ft is average cruising altitude. However it depends. Different aircraft have dfferent cruising altitudes. The higher the better as it requires less gas the thinner the atmosphere.

Answer 9

Near to the edge of the space atmosphere.

Answer 10

depends what kinda aor plane if its small then likw 7000 feet if its big then like 35000 feet