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PRESS RELEASE

Pratt & Whitney Delivers First Production F135 Engine

SINGAPORE AIR SHOW, Tuesday, February 2, 2010

Pratt & Whitney has delivered the first F135 production engine for the F-35 Lightning II, a major milestone and clear demonstration of the maturity of the F135 engine. The engine has accrued more than 13,000 hours in test during the development program. Pratt & Whitney is a United Technologies Corp. (NYSE:UTX) company.

"The F135 engine program accomplishments and this initial production delivery milestone demonstrate we are continuing our legacy of fielding the most advanced military jet engine technology to the benefit of the warfighter," said Warren Boley, vice president of F135 engine programs. "The F135 engine has reached a level of maturity after 13,000 hours of successful testing, building on heritage of the proven F119 engine powering the F-22."

"We are immensely proud of our final product as well as our partnership with the U.S. government, Lockheed Martin and Rolls-Royce," Boley said. "We are committed to delivering the safest, most powerful, affordable and reliable propulsion system for the F-35."

Pratt & Whitney has designed, developed and tested the F135 to deliver the most advanced fifth generation fighter engine for the U.S. Air Force, Marine Corps and Navy, as well as eight international partner countries. The F135 is derived from proven technology of the only operational fifth generation fighter engine, the Pratt & Whitney F119 that powers the F-22. It has been further enhanced with technologies developed in several Air Force and Navy technology programs.

The F135 propulsion system has proven it can meet diverse aircraft requirements, and the ground and flight test experience demonstrates the maturity and the associated reliability of the F135 engine for armed forces around the world.

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 press release contains forward-looking statements concerning future business opportunities. Actual results may differ materially from those projected as a result of certain risks and uncertainties, including but not limited to changes in funding related to the F-35 aircraft and F135 engines, changes in government procurement priorities and practices or in the number of aircraft to be built; challenges in the design, development, production and support of technologies; as well as other risks and uncertainties, including but not limited to those detailed from time to time in United Technologies Corp.'s Securities and Exchange Commission filings.