What should be the maximum thrust level before brake release at an angle of bank greater than 30 degrees with a speed exceeding 30 knots?

In this scenario, the maximum thrust level before brake release at an angle of bank greater than 30 degrees with a speed exceeding 30 knots should be at idle thrust. This is because maintaining an idle thrust setting helps ensure better control and stability of the aircraft during the initial stages of taxiing, especially when sharp turns or banking angles are involved.

When an aircraft is at a significant angle of bank, it is more susceptible to losing control, especially at higher speeds. Using a higher thrust setting could introduce challenges in managing the aircraft's trajectory and response to control inputs, potentially leading to a loss of directional control or increased risk of oversteering.

In contrast, other thrust settings such as max takeoff thrust or TOGA thrust are designed for much different scenarios, such as during takeoff and climb, where maximum power is essential for performance. Taxi thrust is often appropriate for standard taxi operations but may be too high for a scenario where there is a significant bank and speed involved, making idle thrust the safest and most appropriate choice in this context.