FAIRCHILDCONTROLS is to supply the environmental-control system for the upgraded AH-64D Longbow Apache attack helicopter under a $73 million contract from McDonnell Douglas Helicopter Systems.
Frederick, Maryland-based Fairchild will supply the Improved Environmental Control System, a distributed vapour-cycle cooling and heating unit consisting of two redundant systems with dual-speed compressors, 1553 digital-databus controllers and multiple heat-exchangers, fans and control valves. The system has Fairchild Heli-Rotor 54mm compressors and environmentally friendly refrigerant for cooling of avionics and crew, and controls engine bleed-air for crew heating.
Source: Flight International
