Sikorsky Aircraft Corporation is a world leader in helicopter design, manufacture and service. To learn more about Sikorsky, visit its website at www.sikorsky.com, or follow Sikorsky on Twitter: @SikorskyAircrft.Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, auxiliary and ground power units, and small turbojet propulsion products. To learn about Pratt & Whitney, visit its website at www.pw.utc.com, or follow Pratt & Whitney on Twitter: @prattandwhitney. United Technologies Corp., based in Hartford, Conn., provides high technology products and services to the building and aerospace industries. To learn more about UTC, visit its website at www.utc.com, or follow the company on Twitter: @UTC. For information about UTC's commitments to the communities where it operates, visit www.utc.com/makethingsbetter. SOURCE Sikorsky Aircraft Corp.