What must be done before initiating an aerobatic maneuver in the T-6?

Before initiating an aerobatic maneuver in the T-6, ensuring that the aircraft is in the proper configuration is essential for safety and performance. This includes checking the position of the flaps, gear, and other critical control surfaces, as well as confirming that the performance limits of the aircraft will not be exceeded during the maneuver. Proper configuration helps to maximize the aircraft's capabilities, providing better control and reducing the risk of issues during the aerobatic sequence.

While checking fuel levels, reviewing weather conditions, and notifying ground control are important considerations for overall flight safety and planning, they are not specific prerequisites for executing aerobatic maneuvers. The immediate concern is to ensure that the aircraft is in the correct configuration to handle the stresses and dynamics of aerobatic flight.