Pratt & Whitney AeroPower has been selected to provide its APS500[D] auxiliary power unit (APU) for Dassault Aviation's Falcon 5X business jet. Pratt & Whitney AeroPower is partnering with Safran Microturbo for this project. The APS500[D] APU will provide the aircraft with electrical power for main engine starting and cabin air conditioning while on the ground. It was also recently announced that UTC Aerospace Systems will supply the ram air turbine (RAT) system, the SmartProbe air data system (ADS), the fire protection system, and the throttle control unit for the Falcon 5X. UTC Aerospace Systems will provide the systems through its Electric Systems business in Rockford, IL; its Sensors & Integrated Systems business in Burnsville, MN, and Paris, France; and its Propeller Systems busi-ness in Figeac, France. The RAT system will provide power to the aircraft in the event of an emergency. The SmartProbe ADS provides all critical air data parameters for the flight controls and pilot display systems.