What is the minimum airspeed for the closed pullup maneuver?

The minimum airspeed for the closed pullup maneuver is 140 KIAS. This specific speed is critical to ensure that the aircraft has sufficient energy and aerodynamic control for the maneuver to be performed safely and effectively. Operating at or above this speed allows pilots to maintain the necessary lift, stability, and control authority during the pullup phase, thereby reducing the risk of stalling or losing control of the aircraft.

When executing a closed pullup maneuver, the pilot must account for various factors such as G loads, angle of attack, and the aircraft's performance characteristics. At 140 KIAS, the T-6A is operating within a safe margin that can support the required vertical climb while avoiding excessive bank angles that could lead to a stall. Proper airspeed is essential for effective performance during these high-stress maneuvers, making 140 KIAS the minimum requirement for safely completing the closed pullup.