What does AOB stand for in aviation terminology?

In aviation terminology, AOB stands for "Angle of Bank." This term relates to the angle at which an aircraft is tilted when performing a turn. Bank angle is crucial for maintaining control and stability during flight maneuvers. A higher angle of bank allows for sharper turns, while a lower bank angle generally provides a smoother and more gradual change in direction.

Understanding the angle of bank is essential for pilots, as it affects the aircraft's performance, lift, and load factor during flight. For example, when an aircraft banks too steeply, it can lead to increased aerodynamic drag and potential loss of altitude if not managed properly.

The other options do not accurately represent what AOB means in aviation contexts. While angle of bearing could relate to navigation, it is not a commonly used term abbreviated as AOB in aviation. Similarly, altitude of bearing and angle of bias do not pertain specifically to flight maneuvering or control. Thus, recognizing that AOB specifically means "Angle of Bank" is key for understanding flight dynamics and safety.