To properly transition for a take off-flap setting, when should power reduction begin?

The correct answer emphasizes the importance of timing and specific torque settings to ensure a smooth transition for takeoff-flap setting. Reducing power to approximately 20% torque at the appropriate moment—when abeam the intended point of landing—ensures the aircraft maintains the right speed and altitude as it approaches the takeoff configuration.

The term "abeam the intended point of landing" typically refers to a position where the aircraft is perpendicular to the runway, allowing for optimal planning of the approach and subsequent climb. At this point, reducing power encourages a gradual descent and allows for the establishment of the correct aerodynamic configuration as the aircraft prepares to transition into the climb phase. Maintaining a torque setting of around 20% keeps the engine performance within safe limits while allowing for a controlled maneuver.

In this context, attempting to reduce power too early or reducing to a lower torque level than specified can lead to an unsafe condition, such as insufficient lift or inadequate speed for the aircraft's configuration. Hence, the established guidelines recommend this specific torque setting at the defined moment in the approach to ensure safety and efficiency in the transition process.