An aircraft comprising: a fuselage; a left wing connected to the fuselage and extending on a left side of the fuselage; a right wing connected to the fuselage and extending on a right side of the fuselage; a left engine assembly connected to the left wing; and a right engine assembly connected to the right wing, each of the left and right engine assemblies comprising: a nacelle; an engine housed in the nacelle, the engine having a plurality of rotors (84, 86, 92, 94), the plurality of rotors defining an uncontained rotor impact area; a pylon connecting the nacelle to a corresponding one of the left wing and the right wing; at least one hydraulic actuator connected to at least one of the engine and the nacelle; at least one directional control valve hydraulically connected to the at least one hydraulic actuator for controlling a direction of motion of the at least one hydraulic actuator; and at least one isolation valve hydraulically connected to the at least one directional control valve, the at least one isolation valve selectively cutting off a supply of hydraulic fluid to the at least one directional control valve, the at least one isolation valve being disposed in a location that meets at least one of the following criteria: rearward of the uncontained rotor impact area and forward of a trailing edge of the corresponding one of the left wing and the right wing; inside an aft fairing connected to a rear of the pylon and to a bottom of the corresponding one of the left wing and the right wing; and rearward of a leading edge of the corresponding one of the left wing and the right wing and forward of a trailing edge of the corresponding one of the left wing and the right wing. a fuselage; a left wing connected to the fuselage and extending on a left side of the fuselage; a right wing connected to the fuselage and extending on a right side of the fuselage; a left engine assembly connected to the left wing; and a right engine assembly connected to the right wing, each of the left and right engine assemblies comprising: a nacelle; an engine housed in the nacelle, the engine having a plurality of rotors (84, 86, 92, 94), the plurality of rotors defining an uncontained rotor impact area; a pylon connecting the nacelle to a corresponding one of the left wing and the right wing; at least one hydraulic actuator connected to at least one of the engine and the nacelle; at least one directional control valve hydraulically connected to the at least one hydraulic actuator for controlling a direction of motion of the at least one hydraulic actuator; and at least one isolation valve hydraulically connected to the at least one directional control valve, the at least one isolation valve selectively cutting off a supply of hydraulic fluid to the at least one directional control valve, the at least one isolation valve being disposed in a location that meets at least one of the following criteria: rearward of the uncontained rotor impact area and forward of a trailing edge of the corresponding one of the left wing and the right wing; inside an aft fairing connected to a rear of the pylon and to a bottom of the corresponding one of the left wing and the right wing; and rearward of a leading edge of the corresponding one of the left wing and the right wing and forward of a trailing edge of the corresponding one of the left wing and the right wing. a nacelle; an engine housed in the nacelle, the engine having a plurality of rotors (84, 86, 92, 94), the plurality of rotors defining an uncontained rotor impact area; a pylon connecting the nacelle to a corresponding one of the left wing and the right wing; at least one hydraulic actuator connected to at least one of the engine and the nacelle; at least one directional control valve hydraulically connected to the at least one hydraulic actuator for controlling a direction of motion of the at least one hydraulic actuator; and at least one isolation valve hydraulically connected to the at least one directional control valve, the at least one isolation valve selectively cutting off a supply of hydraulic fluid to the at least one directional control valve, the at least one isolation valve being disposed in a location that meets at least one of the following criteria: rearward of the uncontained rotor impact area and forward of a trailing edge of the corresponding one of the left wing and the right wing; inside an aft fairing connected to a rear of the pylon and to a bottom of the corresponding one of the left wing and the right wing; and rearward of a leading edge of the corresponding one of the left wing and the right wing and forward of a trailing edge of the corresponding one of the left wing and the right wing. rearward of the uncontained rotor impact area and forward of a trailing edge of the corresponding one of the left wing and the right wing; inside an aft fairing connected to a rear of the pylon and to a bottom of the corresponding one of the left wing and the right wing; and rearward of a leading edge of the corresponding one of the left wing and the right wing and forward of a trailing edge of the corresponding one of the left wing and the right wing.