Original sentence: EHAs also reduce weight, allow better streamlinging due to reduced internal routing of piping, and lower overall weight of the control system.Here, small valves were attached to the original control cables, controlling the flow of oil into an associated acurator connected to the control surface.Instead of the energy needed to move the controls being supplied by an external hydraulic supply, it is supplied over normal electrical wiring, albiet larger wiring than what would be found in a fly-by-wire system.One of the earliest fittings of a hydraulic boost system was to ailerons late-war models of the P-38, curing their poor roll performance.This is far simpler than the corresponding systems using an external hydaulic supply.With an EHA, high-power versions of these motors are used to drive a reversable pump, which is tied to a hydraulic cylinder
Edited sentence: EHAs also reduce weight, allow better streamlining due to reduced internal routing of piping, and lower overall weight of the control system.Here, small valves were attached to the original control cables, controlling the flow of oil into an associated actuator connected to the control surface.Instead of the energy needed to move the controls being supplied by an external hydraulic supply, it is supplied over normal electrical wiring, albeit larger wiring than what would be found in a fly-by-wire system.One of the earliest fittings of a hydraulic boost system was to ailerons late-war models of the P-38L, curing the need for great human strength in order to achieve a higher rate of roll.This is far simpler than the corresponding systems using an external hydraulic supply.With an EHA, high-power versions of these motors are used to drive a reversible pump, which is tied to a hydraulic cylinder