Which bank angle is considered indicative of aerobatic flight?

A bank angle of 60 degrees is indicative of aerobatic flight due to the specific aerodynamic effects and performance characteristics associated with that degree of inclination. In aerobatic maneuvers, pilots often exceed standard bank angles used in typical flight operations to achieve acrobatic stunts, maintain control, and generate the required lift and turn performance.

At 60 degrees of bank, the aircraft experiences increased load factors, which are crucial in performing various aerobatics, such as loops, rolls, and spins. This angle not only enhances the aircraft's performance in aerobatic contexts but also helps maintain sufficient lift during these high-load scenarios. Maneuvers at this angle demand precise control and understanding of the aircraft's capabilities, which is why 60 degrees is recognized within aviation as indicative of aerobatic flight. Other angles, such as 30, 45, or even 90 degrees, may not necessarily represent typical aerobatic maneuvers or could be associated with different flight conditions or performance limits.