Every time he takes an airplane, why does the captain have to drive the plane to an altitude of 10,000 meters? If it flies a little lower, wouldn't it be more fuel-efficient?
Once the plane takes off, it is a "big oil burner", especially during the climb phase. So why didn't the captain choose to fly at a low altitude?
In fact, once you fly to the stratosphere at an altitude of 10,000 meters and enter the so-called cruising altitude, the air at this time will be much thinner than on the ground. Because of the thinness of the air, the airflow speed will be slower, and the resistance will be reduced, so it is difficult to be affected by various complex weather, and the fuel consumption will naturally be reduced a lot.
In addition to fuel saving, the aircraft can also avoid most of the bad weather after flying into the air at an altitude of 10,000 meters.
Because the top of the troposphere is a natural barrier, the weather above is relatively calm. Not only does this reduce the chance of extreme weather such as thunder and hail, but it also allows you to sit in the plane with less bumps and more comfort. After all, no one wants to experience a roller coaster ride in flight.
However, the flight altitude of the passenger plane is not how high you want to fly, it also needs to be planned according to the weight and model of the aircraft.
For example, the Airbus A380 and Boeing 747, due to their large weight, they naturally do not fly at the same altitude as the Boeing 737. So the same are all airplanes, but different models of aircraft fly at different altitudes.
