UTC OTIS UTC CLIMATE, CONTROLS & SECURITY PRATT & WHITNEY UTC AEROSPACE SYSTEMS
PRESS RELEASE

Pratt & Whitney and Irkut Sign First Contract to Begin Work on PurePower® PW1400G Engine for MC-21 Aircraft

MOSCOW, Russia, Monday, April 12, 2010

Pratt & Whitney and Russia's Irkut Corporation have signed a contract for the companies to begin preliminary design activities on the Pratt & Whitney PurePower® PW1400G engine, which was selected to power the Irkut MC-21 aircraft. The contract represents the beginning of the development of the third airframe application for the PurePower engine, which will provide customers a significant reduction in fuel burn and noise with lower environmental emissions and operating costs than today's engines. Pratt & Whitney is a division of United Technologies Corp. (NYSE:UTX).

Irkut plans to develop the MC-21 as a family of 150 to 210-passenger aircraft with the first flight planned for 2014 and entry into service in 2016.

"We are pleased to work with Irkut to offer the many economic and environmental benefits of the PurePower engine to the MC-21 aircraft," said Todd Kallman, president, Pratt & Whitney Commercial Engines & Global Services. "Our Geared Turbofan™ engine architecture offers unprecedented advantages in the reduction of fuel burn, noise, emissions and operating costs. We believe our engine offers the best benefits possible to Irkut's potential customers and provides a competitive advantage."

The PurePower PW1000G engine features an advanced gear system that allows the engine's fan to operate at a slower speed than the low-pressure compressor and turbine. The combination of the gear system and an advanced core delivers double-digit improvements in fuel efficiency and environmental emissions and a 50 percent reduction in noise as well as reduced maintenance costs.

With core testing in progress and full engine testing scheduled this summer for the engine's first applications, the PurePower engine program fully supports the Irkut MC-21 development timeline.

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies, based in Hartford, Conn., is a diversified company providing high technology products and services to the global aerospace and building industries.

This release includes "forward-looking statements" concerning new products and anticipated future revenues. These matters are subject to any necessary government approvals and potential risks and uncertainties. Important factors that could cause actual results to differ materially from those anticipated or implied in forward looking statements include the health of the global economy and strength of end market demand in the commercial aerospace industry; challenges in the design, development, production and support of advanced technologies and new products and services; and delays and disruption in delivery of materials and services from suppliers. For information identifying other important economic, political, regulatory, technological, competitive and other uncertainties, see UTC's 10-K and 10-Q Reports submitted to the U.S. Securities and Exchange Commission, including the information under the headings "Business," "Risk Factors," "Management's Discussion and Analysis of Financial Condition and Results of Operations" and "Cautionary Note Concerning Factors that May Affect Future Results," as well as the information included in UTC's Current Reports on Form 8-K.