How does an airplane take off, rise to a higher altitude, turn in the air or land on the ground?

Drag, Lift and Speed of the aircraft depend on the Angle of attack to a certain extent. Angle of attack is the angle at which relative wind meets an airfoil. It changes with the direction of the aircraft. The increase in angle of attack increases lift up to a point, beyond which it results in a loss of lift and can cause an aircraft to stall and this angle is known as stall angle. The airspeed at which the aircraft stalls varies with the weight of the aircraft. 

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