Hamilton Sundstrand Preparing for A350XWB Ground Tests

FARNBOROUGH, England, July 19, 2010 - FARNBOROUGH AIR SHOW — Hamilton Sundstrand, a subsidiary of United
Technologies Corp. (NYSE: UTX), is preparing its Airbus A350XWB systems to
support Airbus integration testing on the aircraft and its Rolls-Royce
engine.

"Hamilton Sundstrand is proud of our company's long and successful
partnership with Airbus, allowing us to play a significant role in the
A350XWB's development," said Hamilton Sundstrand President Alain Bellemare.

Hamilton Sundstrand's Electric Systems business was selected by Airbus to
provide the A350XWB's Ram Air Turbine and Electric Power Generation System –
comprising four 100 kVA, 230-volt variable frequency generators and four
generator control units. The EPGS is undergoing testing at Hamilton
Sundstrand's Rockford, Ill., facility with first shipsets being delivered to
Airbus for integration and engine testing. Through ECE, a Zodiac company,
Hamilton Sundstrand will also provide the solid state power controllers for
the aircraft's electric power distribution system.

Hamilton Sundstrand's Ratier-Figeac unit, based in Figeac, France, will
supply one pilot, and one co-pilot cockpit side stick controller per
aircraft. Ratier-Figeac was also selected by Diehl to provide the cockpit
flap control lever. The first units have been tested at Ratier-Figeac and
delivered to Airbus.

Hamilton Sundstrand's Kidde Aerospace & Defense business was selected by
Honeywell to provide the aircraft's bleed air overheat detection system.
Through Honeywell, Hamilton Sundstrand's Nord-Micro business will provide the
aircraft's ventilation control system including fans and
humidification/dehumidification.

Additionally, Hamilton Sundstrand's Engine & Control Systems business has
tested and delivered to Rolls-Royce the first pneumatic engine start system
used for the initial engine run that took place June 17.

With 2009 revenues of US$5.6 billion, Hamilton Sundstrand is
headquartered in Windsor Locks, Conn. Among the world's largest suppliers of
technologically advanced aerospace and industrial products, the company
designs, manufactures and services aerospace systems and provides integrated
system solutions for commercial, regional, corporate and military aircraft.
It also is a major supplier for international space programs.

United Technologies Corp., based in Hartford, Conn., is a diversified
company providing high technology products and services to the building and
aerospace industries worldwide.

www.hamiltonsundstrand.com

    Contact: Dan Coulom
             860-305-5471

             Chalet D14-16
             44 (0) 1252 418300 - Main
             44 (0) 1252 418302

Dan Coulom, +1-860-305-5471; Chalet D14-16, +44 (0) 1252 418300 - Main, +44 (0) 1252 418302