How an airplane works.

Airplanes a marvelous piece of engineering that have come a long way since they were invented. Although large and powerful an airplane fly's based off of 4 ideals in physics. Those ideals are Lift, Gravity, Thrust, and Drag. These are caused by the shape of the airplane and the engines. Two opposite forces (Lift and Gravity, Thrust and Drag) balance each other out. Life is the aircrafts ability to go up, and Gravity is its ability to go down as it keeps everything from floating around. Drag slows the plane down in the opposite direction that the engine is putting out thrust. Thrust is generated by an engine or propellor and goes in the opposite direction of drag. It increases the speed of the plane. As you can see the way airplanes fly is through simple physics.