What is the acceptable oil pressure range during takeoff?

The acceptable oil pressure range during takeoff for the T-6 is indeed 90 to 120 PSI. This specific range is crucial for ensuring that the engine receives adequate lubrication during critical phases of flight such as takeoff, where engine performance is paramount. Maintaining oil pressure within this range is essential for preventing engine damage and ensuring operational safety. The specified range allows for the optimal function of the engine and minimizes the risk of failures that could arise from insufficient or excessive oil pressure. It is important for pilots to monitor oil pressure closely during takeoff to ensure they remain within these parameters for safe flight operations.