Why can an airplane fly in the air, I will explain how the aircraft engine works and why it can fly freely on the clouds even though it is filled with hundreds of passengers and has a very heavy weight.
Basically, to understand how airplanes can fly we must open our memories of the physics we have learned in school. The earth has a gravitational force that makes every object above it fall to the ground. Second, there is a style called the Aerodynamic Force, which is a lift that can be generated. In this context, the aerodynamic force occurs because of the thrust force of the engine used by the aircraft. Both the Gravity and Aerodynamic forces contradict each other. The aircraft engine in overcoming these two opposing forces. There is a thrust force from a very large aircraft engine, and even greater than the drag force that makes the aircraft have a very large speed. The reason why the plane can fly even though it has a very heavy weight. A very large thrust force creates horizontal momentum. Moreover, aircraft engines that are attached to the wing have enormous power. The airspeed above the wing is much larger than the speed of the air at the bottom of the wing. Large air velocities produce small pressures. The air below will become larger and there will be a lift force that can make the aircraft fly. Thanks to the lifting force and horizontal momentum, the plane can fly or swoop up. What about planes that have large bodies? no matter how big or heavy the fuselage, as long as the aircraft engine exerts enormous power, the aircraft can stay up and fly.