What is the correct sequence for a level speed change (LSC)?

The correct sequence for a level speed change (LSC) is to transition from a normal cruise configuration to a no flap configuration, then to a landing flap configuration, and finally back to normal cruise. This sequence allows pilots to effectively manage the aircraft's speed and configuration changes during flight.

Starting from normal cruise, changing to no flap configuration eliminates additional drag while maintaining a controlled and stable flight speed. This preparation ensures that any further configuration changes can be made without sudden airflow disturbances. Transitioning next to landing flaps allows for a slower speed in a controlled manner while generating necessary lift for the aircraft’s landing approach. Finally, returning to normal cruise configuration stabilizes the flight before proceeding to any next maneuvers or landing procedures.

This orderly progression is crucial for ensuring that pilots understand how the aircraft's performance will change at each configuration and maintain control during the speed change process. It's imperative for students to master this sequence to fly safely and effectively, especially when preparing for landing.