What is the proper aircraft configuration for Slow Cruise?

The proper aircraft configuration for Slow Cruise is characterized by an appropriate airspeed, clean aerodynamic configuration, and sufficient power settings to maintain level flight without stalling or exceeding any limitations.

In this scenario, the chosen answer indicates an airspeed of 150 knots indicated airspeed (KIAS), with a clean configuration and an approximate power setting of 33%. This configuration is ideal for Slow Cruise because it provides a balance between speed and control. The clean configuration, which means no flaps or gear deployed, reduces drag and allows for efficient flight at this speed.

Maintaining 150 KIAS ensures the aircraft remains in a safe operating range while providing enough lift and control effectiveness. The power setting of around 33% is appropriate for sustaining level flight at this speed without excessive commands or risks of engine overworking.

All these factors combined create an efficient flight condition that is specifically suited for the intended flying maneuver. The other configurations listed with different speeds and power settings would not optimize the Slow Cruise conditions effectively, potentially leading to inefficient flight or safety concerns.