If a 30 degree angle of bank turn is being used, when should the lead rollout heading be started?

In a 30-degree angle of bank turn, the lead rollout heading should be started 10 degrees prior to the intended heading. This timing is crucial because it allows for the effects of both the aircraft's inertia and the bank angle to be compensated for during the turn. As the aircraft is banked, it does not respond instantly to control inputs due to its momentum. By rolling out early, the pilot can ensure a smooth transition back to level flight without overshooting the desired heading.

Initiating the rollout 10 degrees before reaching the desired heading provides adequate time for the aircraft to reduce the bank angle and align with the new heading. It's a critical part of maintaining control and ensuring the aircraft is stable throughout the maneuver. This approach contributes to safer and more precise flight operations, particularly during training and contact maneuvers.