What is the oil pressure range during takeoff/max operations?

The correct answer is based on the typical oil pressure requirements for aviation engines during takeoff and maximum power operations. In many aircraft, the specified oil pressure range during these critical phases of flight is indeed between 90 to 120 PSI. This range is crucial because adequate oil pressure ensures that the engine components are properly lubricated, preventing overheating and wear, which can occur under the high stress and load conditions experienced during takeoff and maximum performance scenarios.

Operating within this pressure range helps maintain engine efficiency and safety, allowing for optimal performance. Values below or above this range can indicate potential issues with the oil system or engine lubrication, which may require immediate attention to avoid engine damage.