Aircraft EHA Actuators

Moog is a pioneer of Electrohydrostatic Actuator (EHA) technology on military and commercial aircraft. 

Over the last four decades, Moog has developed simplex and dual redundant actuators, dual and triplex redundant actuator controllers, and highly integrated designs with onboard power and control electronics.  Our range of proven EHA-based flight controls includes solutions rated up to 50 HP and capable of delivering more than 65,000 lbf.

Moog’s EHA technology is used as the basis for the revolutionary electric flight control system on Lockheed Martin’s F-35 Lightning II and present on the A400M and A350 XWB.

Electrohydrostatic Actuation Applications

EHA Actuator with Integral Power & Control

To simplify system design and installation, Moog offers highly integrated EHA solutions which include onboard power drives and control.

Dual Redundant EHA Actuator

Redundancy is often required for primary flight control surfaces and our proven designs include actuators with independent servo motor/pump combinations providing hydraulic power to separate pistons in a dual tandem cylinder configuration.

Related Markets

Commercial Aircraft

Premier designer, manufacturer, and integrator of flight control systems for commercial aircraft

Military Aircraft

Premier designer, manufacturer, and integrator of flight control systems for military aircraft.