The RAT develops enough hydraulic pressure primarily for what purpose?

The Ram Air Turbine (RAT) is designed to provide hydraulic pressure primarily for emergency scenarios when the aircraft experiences a loss of all engine power. Its main function is to ensure that critical systems remain operational, enabling pilots to maintain control of the aircraft and perform essential actions in an emergency situation.

While the RAT does contribute to hydraulic pressure that could potentially assist in takeoff and refueling operations, its main purpose is not tied to these situations, as they generally assume engine operation. The RAT is specifically intended to address scenarios where both engines are out of service, allowing for controlled descent and landing or other emergency maneuvers.

Other options, like emergency refueling, are not the primary focus of the RAT’s design, since they usually involve continued engine operation to manage fuel systems appropriately. In contrast, LAPES delivery is a specific tactical operation and not a general hydraulic requirement covered by the RAT's capabilities. Therefore, the key purpose of the RAT is to provide hydraulic pressure in an all engine-out emergency, ensuring critical functions are maintained.