Hamilton Sundstrand was an American globally active corporation that manufactured and supported

aerospace Aerospace is a term used to collectively refer to the atmosphere and outer space. Aerospace activity is very diverse, with a multitude of commercial, industrial, and military applications. Aerospace engineering consists of aeronautics and astron ...

and industrial products for worldwide markets. A subsidiary of

United Technologies Corporation United Technologies Corporation (UTC) was an American multinational corporation, multinational list of conglomerates, conglomerate headquartered in Farmington, Connecticut. It researched, developed, and manufactured products in numerous are ...

, it was headquartered in

Windsor Locks, Connecticut Windsor Locks is a New England town, town in Hartford County, Connecticut, United States. The town is part of the Capitol Planning Region, Connecticut, Capitol Planning Region. As of the 2020 United States Census, 2020 census, its population was ...

. The company was formed from the merger of

Hamilton Standard Hamilton Standard was an American aircraft propeller (aircraft), propeller parts supplier. It was formed in 1929 when United Aircraft and Transport Corporation consolidated Hamilton Aero Manufacturing and Standard Steel Propeller into the Hamilto ...

and

Sundstrand Corporation Sundstrand Corporation was founded in 1926 as a merger of two companies started by Swedish immigrants: the Rockford Tool Company and the Rockford Milling Machine Company in Rockford, Illinois. It was known as Sundstrand Machine Tool Company until ...

in 1999. In 2012, Hamilton Sundstrand was merged with

Goodrich Corporation The Goodrich Corporation, formerly the B.F. Goodrich Company, was an American manufacturing company based in Charlotte, North Carolina. Founded in Akron, Ohio in 1870 as Goodrich, Tew & Co. by Benjamin Goodrich, Dr. Benjamin Franklin Go ...

to form UTC Aerospace Systems. In 2018, UTC Aerospace Systems and Rockwell Collins combined to form

Collins Aerospace Collins Aerospace is an American technology company that is one of the world's largest suppliers of aerospace and defense products. It was formed in 2018 from the merger of Rockwell Collins and UTC Aerospace Systems. Headquartered in Charlotte, ...

History

On June 10, 1999,

and the Sundstrand Corp. were merged, forming Hamilton Sundstrand. Hamilton Sundstrand traces its roots to the founding of the Sundstrand Corp. in 1905 and Hamilton Standard in 1910. In early 2001, Claverham Ltd was sold to Hamilton Sundstrand. On 2 January 2008, Hamilton Sundstrand said it would commercialize the concentrated solar power tower technology and corresponding molten salt storage system developed by Rocketdyne through a new entity known as SolarReserve. In 2012, Hamilton Sundstrand was merged with

to form UTC Aerospace Systems. In 2018, UTC merged UTC Aerospace Systems with Rockwell Collins to form

Products

Hamilton Sundstrand was among the largest global suppliers of technologically advanced aerospace and industrial products. Their three major businesses were Aircraft Systems (Commercial and Military), Industrial and Energy, and Space and Defense.

Aircraft Systems

E-2C Hawkeye with 8-bladed Hamilton Sundstrand NP2000 propellers

Hamilton Sundstrand supplied integrated systems solutions for military, commercial, regional, and corporate aircraft. These included: * Electric Systems * Fire Suppression & Detection * Air Management and Thermal Systems * Auxiliary Power Units (APS2000 and APS3200 models) * Emergency Power Systems * Engine Systems and Externals * Propulsion Systems * Flight Control Systems

Industrial

The primary industrial products that were offered by HS included metering and specialty pumps, rotary screw air and gas compressors, pneumatic tools, dryers and filters, high-speed centrifugal pumps, integrally geared compressors, and sealless pumps. Four separate companies that made up the industrial division of Hamilton Sundstrand were: * Milton Roy Company – Pont-Saint-Pierre,

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

* Sullair –

Michigan City, Indiana Michigan City is a city in LaPorte County, Indiana, United States. It had a population of 32,075 at the 2020 United States census, 2020 census. Located along Lake Michigan in the Michiana region, the city is about east of Chicago and is west o ...

** Champion Compressors –

Melbourne, Australia Melbourne ( , ; Boonwurrung/ or ) is the capital and most populous city of the Australian state of Victoria, and the second most-populous city in Australia, after Sydney. The city's name generally refers to a metropolitan area also known ...

* Sundyne Corporation –

Arvada, Colorado Arvada () is a home rule city located in Jefferson and Adams counties, Colorado, United States. The city population was 124,402 at the 2020 United States census, with 121,510 residing in Jefferson County and 2,892 in Adams County. Arvada is ...

* Precision Engine Controls Corporation – San Diego, California The industrial division of Hamilton Sundstrand was sold by United Technologies in July 2012 to

The Carlyle Group The Carlyle Group Inc. is an American multinational company with operations in private equity, alternative asset management and financial services. As of 2023, the company had $426 billion of assets under management. Carlyle specializes in ...

and BC Partners. In 2013, The four industrial companies became subsidiaries of new parent company Accudyne Industries, Inc.

Space, Land & Sea

Hamilton Sundstrand was the prime contractor for

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the federal government of the United States, US federal government responsible for the United States ...

’s space suit/ Primary Life Support System and produced environmental control, life support, mechanical systems, and thermal control systems for international space programs.

Locations

In addition to its headquarters in

, Hamilton Sundstrand had major operations in

Rockford, Illinois Rockford is a city in Winnebago County, Illinois, Winnebago and Ogle County, Illinois, Ogle counties in the U.S. state of Illinois. Located in far northern Illinois on the banks of the Rock River (Mississippi River tributary), Rock River, Rockfor ...

;

San Diego, California San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...

; Chatsworth, California;

Pomona, California Pomona ( ) is a city in eastern Los Angeles County, California, United States. Pomona is located in the Pomona Valley, between the Inland Empire and the San Gabriel Valley. At the 2020 United States census, 2020 census, the city's population was ...

;

Phoenix, Arizona Phoenix ( ) is the List of capitals in the United States, capital and List of cities and towns in Arizona#List of cities and towns, most populous city of the U.S. state of Arizona. With over 1.6 million residents at the 2020 census, it is the ...

;

York, Nebraska York is a city in and the county seat of York County, Nebraska, United States. At the 2010 census, the city population was 7,766. It is the home of York University and the Nebraska Correctional Center for Women. History York was platted in ...

; and

Puerto Rico ; abbreviated PR), officially the Commonwealth of Puerto Rico, is a Government of Puerto Rico, self-governing Caribbean Geography of Puerto Rico, archipelago and island organized as an Territories of the United States, unincorporated territo ...

along with numerous international sites. Claverham Limited, was an international subsidiary of Hamilton Sundstrand based in

Bristol, England Bristol () is a City status in the United Kingdom, cathedral city, unitary authority area and ceremonial county in South West England, the most populous city in the region. Built around the River Avon, Bristol, River Avon, it is bordered by t ...

US legal action regarding alleged engine software transfer

In June 2012, United States charged Hamilton Sundstrand, its parent company

United Technologies United Technologies Corporation (UTC) was an American multinational corporation, multinational list of conglomerates, conglomerate headquartered in Farmington, Connecticut. It researched, developed, and manufactured products in numerous are ...

, and Canadian affiliate

Pratt & Whitney Canada Pratt & Whitney Canada (PWC or P&WC) is a Canada-based aircraft engine manufacturer. PWC's headquarters are in Longueuil, Quebec, south of Montreal. It is a division of the larger US-based Pratt & Whitney (P&W), itself a business unit of RTX ...

, of selling engine control software to

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

, which aided in the development of the CAIC Z-10. While the Chinese defence ministry denied that China bought or used the software, Pratt & Whitney Canada and Hamilton Sundstrand agreed to pay more than $75 million to the U.S. government to settle the charges.

References

{{UTC Aerospace Systems Aerospace companies of the United States Companies based in Hartford County, Connecticut United Technologies Windsor Locks, Connecticut Aircraft propeller manufacturers de:Hamilton Sundstrand fr:Hamilton Sundstrand