I think the maximum flight level for commercial passenger airliners is 41,000 feet.
That's 12.5 kilometers above sea level.
The altitude above the ground depends on how high the ground is.
The highest ground on earth is the peak of Mt. Everest, about 8.9 km above sea level.
So the maximum flight level for a passenger jet is about 3.6 km higher than the highest
point on the ground.
because it is the layer where airplanes fly
1 kilometer = 100,000 centimeters So if it flies 80 kilometers every hour, it would fly 8,000,000 centimeters in an hour.
36 minutes. But, no bird on earth can fly at 500 km per hour.
TANA Wire Markers ... see tanawiremarker.com
Jet or rocket powered, with a pressurized cabin.
2,000 airplanes fly in the air each day.
Airplanes dont fly in the stratosphere because they produce too much sound. This may cause noise pollution and stress among people who are on the ground. So they dont fly in the Troposphere.
a lot!
Because cats do not have the capability to fly airplanes.
It depends on the fuel capacity. Some airplanes can refuel during flight so conceivably, they can fly until the engines need maintenance. Current aircraft can fly up to 8,000 miles or about 14-15,000 kilometers.
Because people are not able to fly without a airplanes.
Small airplanes like Cessna can fly close to ground. This is because they dont cause much noise. But big airplanes like Boeing and other passenger planes are allowed to fly only in the stratosphere. They cause much noise.
You are unable to fly airplanes, however you can fly helicopters.
because it is the layer where airplanes fly
airplanes can not but satellites can
Type your answer here... airplanes fly in the stratosphere to avoid weather problems
to take people were they need to go and so they wont hit houses and other things.