During constant angle of bank turns, which indicators are used to check aircraft attitude?

In constant angle of bank turns, maintaining an appropriate aircraft attitude is crucial for safe and effective maneuvering. The correct indicators to check aircraft attitude are the horizon and the PFD (Primary Flight Display).

The artificial horizon, or attitude indicator, provides a visual representation of the aircraft's orientation relative to the horizon. This instrument shows whether the wings are level or if the aircraft is climbing, descending, or turning. It is essential for ensuring that the aircraft is maintaining the desired bank angle without excessive pitch changes, which could lead to an undesired flight path.

The PFD complements this by integrating multiple flight data including altitude, airspeed, and turn rate, along with the attitude information. By using both the horizon and PFD together, pilots can effectively monitor their turn and make necessary adjustments to maintain control of the aircraft during the maneuver.

Other options do not focus specifically on the indicators that communicate aircraft attitude within a turn. The altimeter and other references listed might provide helpful information for altitude and heading but do not directly indicate the aircraft's roll or attitude during a turn. Thus, the combination of the horizon indicator and the PFD is vital for achieving and maintaining a controlled and precise turn.