pratt & whitney, a united technologies corp. company (nyse:utx), is a world leader in the design, manufacture and service of aircraft engines and auxiliary power units. pratt & whitney's large commercial engines power more than 25 percent of the world's mainline passenger fleet. the company continues to develop new engines and work with its partners in international aero engines and the engine alliance to meet airline customers'​ future needs. pratt & whitney has built a long and distinguished record of providing top-of-the-line engines to 29 armed forces around the world. our military engines power front line fighters, such as the f-15 eagle, f-16 fighting falcon, f-22 raptor and f-35 lightning ii, as well as the c-17 globemaster iii military transport and boeing's kc-46, the u.s. air force's new airlift tanker. pratt & whitney canada has produced more than 75,000 engines, of which there are currently more than 49,000 engines in service on more than 28,000 aircraft operated by more th