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PRESS RELEASE

Pratt & Whitney Rocketdyne Successfully Powers Launch of U.S. Military's Advanced Extremely High Frequency Communications Satellite

WEST PALM BEACH, Fla., Saturday, August 14, 2010

Pratt & Whitney Rocketdyne today helped boost into orbit the U.S. military's first Advanced Extremely High Frequency military communications satellite. The mission was launched from Cape Canaveral Air Force Station, Fla., by a United Launch Alliance Atlas V rocket. The Atlas V is powered by the RD AMROSS RD-180 booster engine and a Pratt & Whitney Rocketdyne RL10 upper-stage engine. Pratt & Whitney Rocketdyne is a unit of United Technologies Corp. (NYSE:UTX). RD AMROSS LLC is a joint venture of Pratt & Whitney Rocketdyne and NPO Energomash.

"Pratt & Whitney Rocketdyne is pleased to provide power for the launch of the U.S. Air Force's first satellite in the Advanced Extremely High Frequency program, which will provide the U.S. military and national leaders with global, protected, high capacity and secure communication," said Jim Maus, director, expendable propulsion programs, Pratt & Whitney Rocketdyne. "With this fifth RL10-powered mission in 2010 and 409th production model RL10 to fly, we are looking forward to continuing our partnership with United Launch Alliance in the coming decade."

"RD AMROSS and its partners -- NPO Energomash and Pratt & Whitney Rocketdyne -- congratulate the U.S. Air Force on this successful launch," said Len Dest, president and CEO of RD AMROSS.

The Atlas V Centaur upper stage is powered by a single RL10A-4-2 engine that delivers 22,300 pounds of thrust. For more than 46 years, the RL10 has been one of the United States' most reliable upper-stage engines. The Atlas V Common Core booster is powered by the RD-180 engine delivering nearly 1 million pounds of thrust. The RD-180 is the only liquid oxygen-kerosene fueled engine with an oxygen-rich staged combustion cycle flying in the United States today.

Pratt & Whitney Rocketdyne, Inc., a part of Pratt & Whitney, is a preferred provider of high-value propulsion, power, energy and innovative system solutions used in a wide variety of government and commercial applications, including the main engines for the space shuttle, Atlas and Delta launch vehicles, missile defense systems and advanced hypersonic engines. For more information about Pratt & Whitney Rocketdyne, go to www.prattwhitneyrocketdyne.com.

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 commercial building industries.