Which of the following is NOT a prohibited maneuver in the T-6?

Steady Climb Maneuvers are not considered a prohibited maneuver in the T-6. These maneuvers are part of normal operational training and do not violate the aircraft's limitations. In a steady climb, the aircraft maintains a constant rate of ascent, which is essential for conducting specific training exercises and performance evaluations.

Inverted stalls, aerobatic maneuvers with fuel imbalance, and spins below 10,000 feet pressure altitude are all prohibited for safety reasons. Inverted stalls can result in a loss of control and are not a standard part of the aircraft's flight envelope. Performing aerobatic maneuvers with an imbalanced fuel load could lead to unreliable aircraft behavior and potential safety hazards. Similarly, spins are closely monitored, and conducting them below 10,000 feet pressure altitude limits recovery options and may lead to increased risks of not recovering from the spin in time.

Understanding these limitations is crucial for maintaining safety and operational integrity while flying the T-6.