How Far up is an airplane in the sky when it reaches max height about?

Answer 1

35,000 ft or 6.6 miles is the normal cruising altitude of a commercial jet.

There are four forces that act on an airplane -
lift, weight, drag and thrust. Lift pushes or pulls the airplane up. Weight pulls the airplane down towards earth. Drag pulls the airplane back to keep it from moving forward. And thrust pushes the airplane forward.

For the four forces to be balanced, thrust must be equal to drag and lift must equal weight. When this happens we say the airplane is cruising.

The four forces are unbalanced during takeoff, climbing, descending, maneuvering, landing, or basically anytime the airplane is not cruising.

http://www.grc.nasa.gov/WWW/K-12/BGA/Tonya_Dyke/BalancedForces_ans.htm

The U2 Spy Plane was designed to fly at 70,000 ft.
http://www.answers.com/topic/u-2-spy-plane

The World record for both speed and height by an air-breathing aircraft (not a rocket) was 85,135 feet. It was set in an SR-71 Blackbird in 1976. The speed record is also held by an SR-71, at 2,193 mph. This is not as high or as fast as the airplane can fly, however, it's absolute speed and altitude limits are classified. Most US military aircraft can exceed 50,000 feet, if they really really try. Again, the limits are classified. Most commercial jetliners cruise somewhere between 30,000 and 45,000 feet above mean sea level. At higher speeds and altitudes, there isn't enough oxygen in the air to continuously burn the jet fuel required to stay up there. Engines designed to work very well that high, have serious limitations when they are operated closer to the surface. There are aircraft that have flown higher and faster (the X-15) but they really aren't aircraft, they are rockets, because they carry their own source of oxygen, instead of using the air. However, the fastest and highest airplanes are the American SR-71 Blackbirds.
http://www.physlink.com/education/AskExperts/ae610.cfm

Answer 2

That would depend on the airplane you're talking about. A small, piston powered airplane will normally have a service ceiling of about 13,000 feet to 18,000 feet (a bit higher for the high performance models). Most turbo-propeller airplanes (such a commuter airlines) will often get into the low 30's (as in 30,000 feet or a bit higher), while airline operated jets normally operate in the mid to high 30's. Corporate jets usually operate in the 40's and the military doesn't usually like to talk about how high they can actually go. Suffice to say, they have some airplanes that might as well be spacecraft.

Answer 3

It depends on the plane. Most light aircraft have service ceilings of about 12,000-15,000 feet for normally aspirated (non-turbocharged) engines. Turbocharging will allow some of these to travel as high as 25,000 ft. Turbine powered aircraft have higher service ceilings; most turboprops travel around 25,000. Private and commercial Jets travel generally between 25,000 to 45,000 feet. Military aircraft have higher service ceilings. The average fighter can travel up to about 60,000. Surveillance aircraft such as the U-2 or the SR-71 (no longer in reported service) travel around 70,000 to 80,000 ft. All altitudes are above sea level, not the ground.

Answer 4

Airplanes have what is called a service ceiling.
It is the altitude where the plane can no longer climb at more than a minmum rate, (100 FPM.).
It is different for different classes of airplane.
Jets can reach almost 40,000 Ft.
Propeller driven singles without turbochargers can top out at as little as 12,000 Ft.

Answer 5

Commercial Airliners fly around 35,000ft. while some private jet go higher or lower. A cessna 172 max altitude is about 20,000ft.

Answer 6

Depends on the plane. I took a Cessna 172 up to 20,000 feet'+ without any problem except a headache.

Answer 7

I just looked at my Information Manual (generic POH)for the 172, it says the service ceiling is 14,000. I can see on a colder than standard day getting a little more but 20 K, me thinks not.

Answer 8

Comercial airliners 30,-000-38,000ft some times on longer flights in planes like 747-400 777 you will get up to 41,000ft.
Private jets on trips longer than around 90 minutes they will get up to 41,000-48,000ft.

Answer 9

Most aircraft will travel between 35,000 - 55,000 depending upon the make and model and where they are flying to. The Concorde maximum height reached 60,000, which is amazing to me!

Answer 10

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