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PRESS RELEASE

Pratt & Whitney F100-PW-229 Engine Enhancement Package (EEP) Engine Provides Cost Savings, Readiness to Customers

SINGAPORE AIR SHOW, Tuesday, February 2, 2010

Pratt & Whitney has delivered its first 25 F100-PW-229 Engine Enhancement Package (EEP) engines to customers, providing significantly reduced cost of ownership and increased safety and readiness. Pratt & Whitney is a United Technologies Corp. (NYSE:UTX) company.

These initial 25 engines were delivered in support of Block 52 F-16 deliveries to Pakistan and F-15K deliveries to the Republic of Korea. All customers operating the F100-PW-229 engine are expected to take advantage of the cost of ownership benefits of the EEP configuration over the course of the next seven to 10 years.

The F100-PW-229 EEP engine is the only fighter engine funded and qualified by the U.S. Air Force to 6,000-cycle capability and is the latest evolution of the F100 family of fighter aircraft engines.

"With the F100-PW-229 EEP engine, we have leveraged technology developed on the F119 engine powering the F-22, and on the F135 engine powering the F-35, to achieve significant improvements in scheduled maintenance interval, engine reliability and component durability," said Bill Begert, vice president of Business Development for Pratt & Whitney.

Development of the F100-PW-229 EEP engine was funded through the U.S. Air Force with the goal of meeting target metrics for time on wing, cost of ownership and improved safety and readiness.

"Military services around the globe are pressed to reduce operational cost and are delaying or reducing the introduction of new aircraft due to military budget reductions," Begert said. "With the F100-PW-229 EEP engine, we have listened to the needs of the customer and are delivering to them a high quality, dependable engine that is safer, more durable and costs significantly less to operate and maintain."

Existing F100-229 owners have said there is virtually no incremental cost to upgrade existing engines to the EEP configuration during the normal scheduled maintenance visit. Depot upgrade is planned for the single largest fleet of F100-PW-229 engines: the U.S. Air Force.

The F100-PW-229 EEP engine increases the engine depot inspection interval from seven years to 10 years and provides up to a 30 percent cost reduction over the life the engine. The EEP will also offer significant safety benefits, with an expected 25 percent reduction in the already low probability of in-flight shutdown.

The F100-PW-229 EEP engine offers customers a lower total cost of ownership and an outstanding safety record. By incorporating the latest technologies, this propulsion system provides advanced, dependable power for F-15 and F-16 fighter aircraft around the world.

Pratt & Whitney military engines include the F135 for the F-35 Lightning II, the F119 for the F-22 Raptor, the F100 family that powers the F-15 and F-16, the F117 for the C-17 Globemaster III, the J52 for the EA-6B Prowler, the TF33 powering AWACS, Joint STARS, B-52, and KC-135 aircraft, and the TF30 for the F-111. In addition, Pratt & Whitney offers a global network of Maintenance Repair and Overhaul and Military Aftermarket Services focused on maintaining engine readiness for our customers.

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 and technological outcomes. Actual results may differ materially from those projected as a result of certain risks and uncertainties, including but not limited to 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, variations in operational use of engines; as well as other risks and uncertainties, including but not limited to those detailed from time to time in United Technologies Corporation's Securities and Exchange Commission filings.