What is the correct flight attitude for maintaining a heading of 225 degrees?

The correct flight attitude for maintaining a heading of 225 degrees involves a configuration that allows the aircraft to fly straight and level while adjusted appropriately for bank angle. A bank to the left at 15 degrees would help maintain the desired course of 225 degrees, which indicates a southwest trajectory.

In this scenario, maintaining altitude with no climb or descent ensures that the aircraft is stabilized, avoiding unnecessary altitude changes that could impede directional control. The left bank helps counteract the natural tendency to drift off course due to wind or other factors, allowing for precise navigation along the desired heading. Thus, this combination of a level flight attitude maintained with a left bank creates an optimal condition for maintaining the specified heading accurately.