Title: Describe takeoff.
Course: Aircraft Pilot Training II (20053-II) > Section: Operating the Aircraft

Description should include the following:

- The minimum takeoff distance is of primary interest in the operation of any airplane because it defines the runway requirements. The minimum takeoff distance is obtained by taking off at some minimum safe speed, which allows sufficient margin above stall and provides satisfactory control and initial rate of climb.
- To obtain minimum takeoff distance at the specific liftoff speed, the forces which act on the airplane must provide the maximum acceleration during the takeoff roll. The various forces acting on the airplane may or may not be under the control of the pilot, and various techniques may be necessary in certain airplanes to maintain takeoff acceleration at the highest value.
- The powerplant thrust is the principal force to provide the acceleration and, for minimum takeoff distance, the output thrust should be at a maximum.
- Lift and drag are produced as soon as the airplane has speed, and the values of lift and drag depend on the angle of attack and dynamic pressure.

PLT133