Why do planes fly at 38000 feet?
Commercial aircraft typically fly between 31,000 and 38,000 feet — about 5.9 to 7.2 miles — high and usually reach their cruising altitudes in the first 10 minutes of a flight, according to Beckman.
Another reason why planes don’t fly higher is due to the weight of the aircraft..
Can a plane fly at 43000 feet?
Modern airliners are usually built with the ability to function when flying over 40,000 feet. … According to USA Today, a Boeing 767 has a service ceiling of 43,000 feet. The service ceiling is the maximum density altitude an airliner can reach according to its design.
Can planes fly at 50000 feet?
Currently, no passenger airplanes are “able” to fly at 50,000 feet or above. Because, at these altitudes, air density is very low, which wouldn’t sustain the heavy weight of the passenger aircrafts. Commercial airplanes have an Absolute Ceiling of 43000 feet.
Why do planes do not fly over the Pacific?
The primary reason airplanes don’t fly over the Pacific Ocean is because curved routes are shorter than straight routes. … Whether a commercial airline is flying from the United States to Asia or elsewhere, it will have the fastest and most fuel-efficient flight by performing a curved rout.
Do Planes fly over Mount Everest?
Airplanes often avoid air paths that take them over Mt Everest or the Pacific Ocean. … This is because “the Himalayas have mountains higher than 20,000 feet, including Mt Everest standing at 29,035 feet. However, most commercial airplanes can fly at 30,000 feet.”
Why do planes fly at 40000 feet?
There is less friction at higher altitudes, less friction and higher air speed causes engines to burn less fuel therefore it improve fuel efficiency allowing the airplane to travel further. High altitude means less power is needed to propel the plane and at 40,000 feet the engines are just above idle power.