Moog Inc.

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Moog Incorporated
S&P 600 Component
Industry Aerospace, Defense, Industrial Automation, and Motion Control
Founded 1951
Headquarters East Aurora, New York
Key people
John Scanell, Chairman & CEO
Don Fishback, CFO
Products Hydraulic and Electronic Control Systems
Revenue Increase US$2,470MM [1]
Number of employees
10,976 [2]

Moog is an American-based designer and manufacturer of motion and fluid controls and control systems for applications in aerospace, defense, industrial and medical devices. The company operates under four segments: aircraft controls, space and defense controls, industrial controls, and components.

Moog is headquartered in East Aurora, New York, a suburb of Buffalo, New York and has sales, engineering, and manufacturing facilities in twenty-six countries.[3]


Bill Moog[edit]

In April 1950 Bill Moog (cousin of Robert Moog, inventor of the Moog synthesizer) applied for a patent for the electrohydraulic servo valve (later called a "Moog Valve"), a device to control hydraulic pressure for fine control of actuators. The US patent 2625136 was issued in January 1953.[4] Bill Moog died in 1997 aged 82.[citation needed]

Notable Projects[edit]

Moog provided products and technologies that were used on the B-2 Bomber and was also responsible for the flight control actuation system. Moog also contributed to the manufacture and development of both Hydraulic and Electric flight simulators. Moog's design was adapted to form the Spider-Man ride at Universal Studios adventure theme park. Moog also worked on several space contracts and designed part of the liquid rocket engine propulsion systems on the Voyager space probes and provided thruster valves that steered the spacecraft. Moog also made servo-actuators for four Space Shuttles.

Moog provided a control and motion system for the Wimbledon Centre Court retracting roof. This consisted of about 150 axes of AC servo-controlled electric actuators, AC servomotors, AC servodrives and the complete motion control system, including software. It was engineered by Moog's UK facility and allowed the Centre Court's only night-time tennis performance.

Moog also has notable track record of providing a range of control axes on Formula 1 racing cars and has been involved in this business for over 30 years. The technologies provide extremely high power:weight ratio and provide actuation for up to 10 axes on each car.

Aircraft controls[edit]

The company's largest segment is aircraft controls which generates revenues from military and commercial aircraft in addition to aftermarket support.

Moog has worked on:

Space and defense[edit]

Moog has technologies for satellites and space vehicles in addition to various aspects of defense such as missiles, weapons / stores management, turreted weapon systems, Naval technologies along with Security and Survelliance systems.

For satellites, Moog develops chemical and electric propulsion systems and space flight motion controls. Launch vehicles and missiles use Moog's steering and propulsion controls, and the International Space Station uses its couplings, valves and actuators.

Moog has both Electro-Hydraulic and Electro-Mechanical systems as part of its solutions.

In 2012, Moog acquired the In-Space Propulsion (ISP) business of American Pacific Corporation (AMPAC), which was formerly part of Atlantic Research Corporation (ARC). Products include the LEROS family of liquid-propellant thrusters, acquired by ARC in 1998 and developed in the 1990s by Royal Ordnance (later part of British Aerospace) in the United Kingdom; Moog continues to operate a manufacturing facility at Westcott, Buckinghamshire, on the former Royal Ordnance site.[5][6]

Moog has supplied assistance on the following:


Moog provides industrial services. For the plastics and machinery market Moog designs, manufactures and integrates systems for all axes of injection and blow molding machines using both hydraulic and electric technology. In the power generation turbine market, Moog designs, manufactures and integrates control assemblies for fuel, steam and variable geometry control applications that include wind turbines. Metal forming markets use Moog designed and manufactured systems that provide control of position, velocity, force and other parameters. Heavy industry uses Moog's electrical and hydraulic servovalves for steel and aluminum mill equipment. For the material test markets, Moog supplies controls for automotive, structural and fatigue testing. The company's hydraulic and electromechanical motion simulation bases are used for the flight simulation and training markets. Other markets include material handling and testing, motorsport (including F1), carpet tufting, paper and lumber mills.


Moog markets medical equipment components. As a result of the acquisition of the Power and Data Technologies Group of the Kaydon Corporation in July 2005, Moog entered into the market of marine applications. Components has several other product lines that include the design and manufacture of electromechanical actuators, fiber optic modems, avionic instrumentation, optical switches and resolvers.

Medical devices[edit]

Medical devices is Moog's newest segment, formed as a result of the acquisition of Curlin Medical, McKinley Medical, and Zevex International in 2006. Moog's primary products are electronic ambulatory infusion pumps and ambulatory enteral feeding pumps along with the necessary administration sets as well as disposable infusion pumps. Applications of these products include controlled delivery of fluids to the body, nutrition, post-operative pain management, regional anesthesia, chemotherapy and antibiotics. On January 23, 2009 Moog acquired the stock of Ethox International for $15.2 million in cash. Ethox is a Buffalo, NY based medical products manufacturer and service provider.

On July 1, 2013, Moog announced the sale of its Buffalo, New York operations of Ethox Medical to Dempsey Ventures. Annual sales from this division were approximately $12 million, with 88 full-time employees. Dempsey Ventures, based in Grand Rapids, Michigan, is a private equity firm focused on healthcare products. Its portfolio of companies in the anesthesia/respiratory space includes SunMed, Bay Medical and Ventlab. The Company also announced that it has engaged RBC Capital Markets LLC to assist with the strategic assessment of the remainder of its Medical Devices segment, including the possibility of divesting the entire segment.[7]

In 2016 the remainder of Moog's medical devices segment was integrated into the components group.


  1. ^ Moog, Inc Investor Facts., accessed July 22, 2013.
  2. ^ [1]., accessed July 22, 2013.
  3. ^ Moog Historical Information Archived June 21, 2009, at the Wayback Machine.., accessed December 29, 2007.
  4. ^ US Patent 2,625,136[permanent dead link]
  5. ^ "In-Space Propulsion". Moog Inc. Retrieved 5 July 2016. 
  6. ^ "Moog Space & Defence Group". Retrieved 5 July 2016. 
  7. ^ "Moog Announces Sale of Ethox Medical Buffalo Operations and Hiring of Advisor to Consider Strategic Alternatives for Medical Devices Segment". Retrieved 2013-12-09.