coordinated turn
A combination of control inputs that cause a maximally efficient turn
deadstick
Flying without the aid of engine power ...
In a coordinated turn, the aircraft is happy to continue turning forever; it will definitely not have any tendency to return to wings-level flight. Indeed, it will have the opposite tendency, called the overbanking tendency, which we now discuss.
To engage a smooth, coordinated turn in which the fuselage is in line with the flight path, the pilot uses an aircraft's rudder in conjunction with the ailerons. This is done to compensate for the adverse yaw that results from the use of ailerons.
The uncoordinated turn is region where this stall and spin accident occurs. In crosswinds that are blowing you into the runway double your perception of the usual distance away from the runway.
Entry:
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An uncoordinated turn in which the rate of turn is too great for the angle of bank, pulling the aircraft to the outside of the turn.
Skin friction drag. Drag generated between air molecules and the solid surface of the aircraft.
An airplane can be banked to 90°, but a continued coordinated turn is impossible at this bank angle without losing altitude.
 See also: Plane, Power, Speed, Direct, Wing
  
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