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History

United Technologies is a global corporation made up of world-leading businesses with rich histories of technological pioneering.

Our businesses built the world's first working helicopter, invented elevators and air conditioning, developed the first commercially available hydrogen fuel cells and designed complete life support systems for the Space Shuttle.

Our engines power over 50 percent of the world's commercial airliners and our systems can be found on more than 90 percent of the world's aircraft.

A quick history

Use the timeline below to a quick overview of UTC defining moments.


UTC celebrates 25 years of sponsorship of the arts, having invested more than $55 million and sponsored 54 exhibitions of the visual arts on four continents. (2005)
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Rocketdyne is acquired from Boeing and added to Pratt & Whitney's space propulsion business. (August 2005)

Kidde fire safety business is acquired and, with Chubb, forms UTC Fire & Security (April 2005)


Hamilton Sundstrand wins contracts for eight systems on the Boeing 7E7 airliner, a potential total program value exceeding $6 billion over the life of the program. (February 2004).
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UTC Fuel Cells chosen to participate in U.S. Hydrogen Research Initiative, a multiyear program dedicated to establishing a hydrogen economy (April 2004).


Sikorsky Aircraft selected by the National Aeronautic Association to receive the 2002 Robert J. Collier Trophy, honoring the new S-92 helicopter as "the greatest achievement in aeronautics or astronautics in America.” (February 2003).
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UTC acquires Chubb plc, a world leader in security and fire protection services.

Environmental Protection Agency recognizes UTC and Carrier for their participation in EPA's Climate Leaders program and their commitment to developing long-term climate change strategies. (June 2003).


Carrier wins the largest contract ever for container refrigeration systems. The 14,500 units ordered by P&O Nedlloyd will chill commodities shipped throughout the world in maritime containers.


Otis unveils its $68 million new horizontal and vertical transportation system installed in Northwest Airlines’ new Edward H. McNamara Terminal at Detroit Metropolitan Airport. Two 35-ton, elevated Express Trams that glide silently on a cushion of air form the centerpiece.

Fuel Cell installation


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UTC ranks as the “Most Admired” aerospace company among its industry peers for the second straight year, according to Fortune magazine. Fortune also ranks UTC as the "Most Admired" aerospace/defense company in the world for the first time in the company’s history.


Otis tram

UTC Fuel Cells announces the sale of seven PC25™ fuel cells to Verizon to provide primary power for a critical call-routing center on Long Island, New York. The seven units will form the largest fuel cell installation in the world, surpassing the six-unit PC25system installed at the Connecticut Juvenile Training Center in 2001.

UTC announces the formation of UTC Power to focus on the distributed generation market (i.e., other than central power plants). UTC Power consists of microturbine products, UTC Fuel Cells and aero-derivative industrial engines.

Otis completes a four-year, 6,000-man-hour project to modernize the duo-lift elevators in the Eiffel Tower. Otis had installed the original elevators in 1889.
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UTC Fuel Cells announces it will provide six PC25™ fuel cells to the Connecticut Juvenile Training School, creating the largest fuel cell installation in the world.
Eiffel tower
Elevator hoist belt
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Otis announces the Gen2™ elevator system, the first elevator system to use flat belt technology in place of steel cables to lift the elevator car. The Gen2™ system requires no separate machine room and uses an energy-efficient gearless machine.

UTC, formerly, United Aircraft Corporation, celebrates its 25th anniversary.


Flight tests begin on Boeing 777 powered by the PW4098 - the most powerful engine in commercial aviation at 98,000 pounds of thrust.


UTC sells UT Automotive to Lear Corp.


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UTC acquires Sundstrand Corp. and combines it with Hamilton Standard to form Hamilton Sundstrand.


Boeing 777


Sikorsky S-92
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First flight of the Sikorsky S-92, a 19-passenger helicopter developed and manufactured by a six-nation consortium.
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Employee Scholar Program extended to all UTC employees worldwide. More than 11,000 US employees in school; 82,000 shares of UTC stock awarded to employee graduates.


Otis reinvents the elevator industry by launching the Odyssey system. This unique technology allows passengers to move either vertically or horizontally in the same elevator car thus removing the final technical barrier to the construction of mile-high skyscrapers.


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Pratt & Whitney ships the PW4090, the most powerful engine in its history, rated at 90,000 pounds of thrust.


The UTC Employee Scholar Program, launched with the goal of meeting the future with an engaged, smart workforce, results in a 48% increase in the number of UTC employees enrolled in college or graduate programs.


The first Boeing 777 twin-jet, powered by Pratt & Whitney engines, enters commercial service with United Airlines.


Carrier becomes the first in its industry to offer chlorine-free refrigerants across its major product lines.

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UTC announces Employee Scholar Program allowing employees to earn college degrees. Our goal: The best educated work force on the planet (December 1995).

Hamilton Standard's all-composite, six-bladed propeller system is flight-certified for the regional airline market.


Hamilton Standard's space suit life support system performs flawlessly during an unprecedented five consecutive days of space walks to service and repair the Hubble space telescope.

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Hamilton space suit

The Elevonic 411 control system makes real-time dispatching decisions in response to building traffic demands.

United Technologies' international business surpasses half of total revenues for the first time.

Otis forms its first manufacturing joint venture in Russia.

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Otis in Russia
 

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Otis installs the first linear-motor-powered elevator.

Carrier establishes the first of several joint ventures in China. 1
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Otis installs the first Remote Elevator Monitoring (REM®) system.

Otis establishes the first of several joint ventures in China.

Hamilton Standard introduces the world's first commercial full-authority digital electronic control system for aircraft engines.

PW2000 enters service on the Boeing 757. The engine is the first commercial turbofan with full-authority digital electronic engine control (FADEEC).

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PW2000 engine
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Space Shuttle Columbia is launched with Hamilton Standard and UTC Fuel Cells systems, including space suits, environmental control systems and fuel cells for electrical power.

Otis unveils Elevonic 101, the first completely microprocessor-based elevator control system.

UTC acquires Carrier, the world's largest manufacturer of air-conditioning and refrigeration equipment.

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Carrier logo
Sikorsky Black Hawk
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Sikorsky begins production of the Black Hawk helicopter. The Black Hawk family is flown by 25 nations and, with more than four million flying hours, sets the global standard for versatility and reliability.
UTC acquires Otis, the world's largest elevator company. Hamilton Standard introduces its first dual digital flight control. 1
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Otis logo

UTC logo

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United Aircraft Corporation changes its name to United Technologies Corporation "to connote the breadth of its products, markets, and activities."

U.S. Air Force chooses the F100-powered F-16 as its new lightweight fighter.

F100 engine enters service on the F-15 fighter. 1
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F-15

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The Research Center completes construction of the world's first high-speed wind tunnel designed specifically for aerodynamic noise research.
The first jumbo jet, Boeing 747, powered by Pratt & Whitney JT9D engines, enters commercial service. 1
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Boeing 747

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Apollo 11 lands astronauts on the moon with support from Hamilton Standard space suits and Pratt & Whitney fuel cells.

Sikorsky helicopter picks up returning astronauts after splash-down, and even Otis elevators at Kennedy Space Center and Carrier air-conditioning at Houston Space Center.

Hamilton Standard delivers world's first electronically- controlled cabin pressure regulating system. 1
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SR-71 Blackbird
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The SR-71 Blackbird, with Pratt & Whitney J58 variable-cycle jet engines, enters service with the U.S. Air Force.
Pratt & Whitney Canada's PT6 turboprop enters service and subsequently becomes the most popular turboprop in history. 1
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PT6 turboprop
JT8D engine
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Pratt & Whitney's JT8D, the most popular commercial jet engine in history, enters service on the Boeing 727. More than 14,000 have been built to date.

The Boeing 707, powered by Pratt & Whitney JT3 engines, introduces regular commercial passenger jet service.

United Aircraft establishes itself in the field of solid rocketry and advanced propulsion systems.

Hamilton Standard's first environmental control system for commercial airliners enters service.

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Boeing 707
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Sikorsky flies its first turbine-powered helicopter.

Pratt & Whitney begins manufacturing piston engines in Canada.

Carrier introduces the first mass-produced unit for central air-conditioning in homes.

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Otis installs the first Autotronic elevators without operators.

Carrier window units make air-conditioning affordable for average consumers.

Hamilton Standard diversifies beyond propellers, developing fuel controls. 1
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fighter jets
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Pratt & Whitney produces its first jet engines.
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Sikorsky moves totally into the helicopter industry and supplies 150 helicopters for World War II.

Pratt & Whitney and its licensees produce 300,000 aircraft engines, delivering half of all the horsepower used by the U.S. air forces and a large percentage of that flown by Allied forces.

Hamilton Standard and its licensees produce 500,000 propellers for U.S. and allied aircraft.

Carrier opens a frozen foods research store to learn about equipment needs for the "popular and rapidly growing" frozen foods industry. 1
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VS-300 helicopter
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Igor Sikorsky, his trademark fedora hat firmly on his head, is at the controls as the VS-300 flies for the first time. It marks the beginning of the helicopter industry.
Hamilton Standard introduces the Hydromatic propeller, later named an International Historic Mechanical Engineering Landmark for its advances in propulsion technology. 1
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1938 airmen
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Sikorsky amphibious aircraft pioneers air routes across the Pacific and, two years later, the Atlantic.
United Aircraft & Transport is dissolved as a result of federal opposition to the continued affiliation of airlines with aircraft equipment manufacturers. Its businesses form three new corporations: United Aircraft, the Boeing Airplane Company and United Air Lines Transport. 1
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Air mail contract
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Otis introduces the first double-deck elevators.
Toyo Carrier is organized in Japan. Two years later, Toyo Otis opens its first Japanese factory. 1
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United Aircraft cover
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The Research Center, the corporation's central research laboratory, is established in East Hartford, Connecticut.

Boeing Airline & Transport joins with Pratt & Whitney, Chance Vought, Hamilton, Sikorsky and Standard Steel Propeller to form United Aircraft and Transport.

Carrier air-conditions the chambers of the U.S. House of Representatives and Senate. 1
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Lindbergh plane
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Charles Lindbergh makes history's first solo, nonstop transatlantic flight in a Ryan monoplane equipped with a Standard Steel adjustable propeller.

Pratt & Whitney Aircraft is incorporated. Its stockholders are Frederick Rentschler, George Mead and the Pratt & Whitney Co, a Hartford, Connecticut, machine tool manufacturer. The new company's first products are the Wasp and Hornet aircraft engines.

Pratt & Whitney receives a U.S. Navy contract for 200 Wasp engines.

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Navy biplane

Otis develops the first automated elevator control system, introducing hall call buttons. 1
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Igor Sikorksy
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Russian emigré Igor I. Sikorsky founds Sikorsky Aero Engineering.
Carrier air conditioning makes its public debut at a theater in Los Angeles. Two years later Carrier installs air-conditioning at a department store in Detroit. 1
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Hamilton Aero
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Standard Steel Propeller is established, and the following year Thomas F. Hamilton founds Hamilton Aero Manufacturing. The two are predecessors of Hamilton Standard.
Willis Carrier and six other engineers found Carrier Engineering with an investment of $32,600. 1
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Carrier engineers
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Otis introduces the gearless traction electric elevator, a major advance from the steam-powered elevator.
Willis H. Carrier invents modern air-conditioning. 1
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Willis Carrier
Otis introduces the Escalator at the Paris Exposition. 1
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Otis makes its first international sale, shipping an elevator by schooner to Newfoundland.
Otis installs the world's first passenger elevator in a retail store in New York City. 1
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Elisha Graves Otis

World's Fair demo

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Elisha Graves Otis establishes his elevator factory. The next year, at the New York World's Fair, he proves his new product's safety mechanism: "As he rides up and down upon the platform, (he) occasionally cuts the rope by which it is supported."
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