What is the downwind speed and power setting for a no flap (NF) configuration?

In a no flap (NF) configuration, the aircraft requires specific speed and power settings to ensure optimal performance during the downwind leg of an approach. The correct answer indicates a downwind speed of 120 knots indicated airspeed (KIAS) and a power setting of approximately 31%.

When flying in the NF configuration, a higher power setting is usually necessary to maintain altitude due to the reduced lift generated without flaps, which are typically used to enhance lift at lower speeds. The power setting of around 31% allows for adequate thrust to keep the aircraft stable and in a properly controlled descent while adhering to safe airspeed requirements.

The other power settings associated with different choices either exceed what is typically required for efficient handling or do not provide enough thrust to maintain the required control and performance characteristics of the aircraft in the NF configuration at the identified airspeed. Thus, the choice with a 31% power setting aligns correctly within the operational parameters established for flying without flaps.