What information does the turn coordinator provide?

 The turn coordinator is a type of flight instrument that is typically found in small aircraft. It provides information about the rate of turn and the rate of roll of the aircraft.

The turn coordinator consists of a ball that is suspended in a sealed case by a set of gimbals. The ball is free to move in any direction, and is affected by the centrifugal force of the turn. As the aircraft turns, the ball moves to the outside of the turn. When the aircraft is in coordinated flight (i.e., the wings are level and the aircraft is not slipping or skidding), the ball will be centered in the case. If the ball is not centered, it indicates that the aircraft is in a slip or skid, and corrective action is needed to regain coordinated flight.

The turn coordinator also has a small pointer, or "flyball," that moves in response to the aircraft's roll rate. The flyball rotates around the circumference of the ball in response to changes in roll rate, and its position relative to the fixed index mark on the instrument's face indicates the aircraft's roll rate.

The turn coordinator instrument provide pilots with the information they need to ensure that the aircraft is in a coordinated turn, that is, a turn with the ball centered, which is the correct way to make a turn while staying in a level flight attitude. Also it indicate the rate of roll(left or right)