While making a standard rate left turn, if your speed increases by 12 knots, what should you do to stay coordinated?

In a standard rate turn, maintaining coordination is crucial for ensuring that the aircraft turns smoothly without skidding or slipping. When the speed of the aircraft increases during a turn, the centrifugal force acting on the aircraft also increases. To counteract this increased lateral load, you need to increase the angle of bank.

By increasing the angle of bank, you will generate a greater amount of lift directed towards the center of the turn, balancing out the increased force that comes from a higher airspeed. This adjustment allows the aircraft to maintain a coordinated turn—keeping the wings level with respect to the horizon while effectively managing the forces acting upon it.

So, increasing the angle of bank helps to maintain that necessary balance between the lift generated and the increased centrifugal force due to the higher speed, ensuring the aircraft stays correctly coordinated during the left turn.