Current Design Requirements for Corrosion Control on Helicopters
ARMY MATERIALS AND MECHANICS RESEARCH CENTER WATERTOWN MA
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Aeronautical Design Standard ADS-13C embodies the general requirements for the materials and processes used in the design and construction of Army aircraft. The materials and processes are used in accordance with AMCP706-203, the Engineering Design Handbook Helicopter Engineering, part three, Qualification Assurance. Properties of materials are generally obtained from MIL-HDBKs -5, and -23 for metallic materials, plastics, and structural sandwich composites respectively. All of the system parts are finished to provide protection from corrosion and other forms of material deterioration in accordance with a contractor-prepared and Government-approved material deterioration prevention and control MADPAC plan which is detailed in the appendix to ASD-13. This appendix describes the managerial and technical responsibilities of Army contractors in the design, validation, development and production phases of Army aviation systems. It provides a mechanism for the implementation of sound materials selection practices and finish treatments during the life cycle of all Army aviation weapon systems and defines the organization and implementation of MADPAC finish specification which complies with MIL-F-7179. ADS-13C represents the most recent revision of the standard which embodies some of the corrosion lessons learned from Army helicopters where weight reduction was the overriding concern in the design and construction of the aircraft.