Secondary Power Systems for Advanced Rotorcraft,
ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT PARIS (FRANCE)
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This AGARDograph presents the results of a review of European manufactured Secondary Power Systems SPS for rotorcraft. Included are a compilation of SPS functions, state-of-the-art parametric SPS component data for optimization trade studies, and a trade study to select an optimum SPS. The study addresses the aspects of integrated SPS electrical, hydraulic, pneumatic and mechanical concepts for cockpit and avionics environmental control systems, ice protection system, hoist drive system, main engine starting, auxiliary power unit and its starting system integration. System optimization and recommended selection are based on trade study parameters of weight, cost and product assurance, which in detail included the SPS takeoff weight influence, system volume, acquisition costs, life cycle costs, maintainability requirements, mission reliability, rotorcraft dispatch availability complexity and survivabilityvulnerability features.