Can the T-54 accelerate on centerline with just aileron and rudder during an engine failure before 84 KIAS?

The T-54 cannot effectively accelerate on centerline using only aileron and rudder control during an engine failure before reaching 84 KIAS. At lower speeds, the aircraft lacks sufficient aerodynamic authority and control responsiveness to counteract the effects of asymmetrical thrust, which becomes significant during an engine failure. The rudder alone is not capable of providing enough yaw stability and control to maintain directional integrity on the runway without the assistance of engine thrust.

Furthermore, as the aircraft approaches its stall speed, control responsiveness diminishes, and the effectiveness of ailerons and rudder is compromised. In this scenario, maintaining control becomes increasingly difficult, making it unsafe to rely solely on these control surfaces for acceleration and directional stability. Therefore, the statement that the T-54 can accelerate on centerline during such conditions is incorrect. The combination of insufficient airspeed and the aerodynamic limitations at that stage of flight prevents effective control.