COMPOSITE PROPELLER BLADE FOR TURBOPROP AIRCRAFT

摘要

PURPOSE: A composite propeller blade for a turboprop aircraft is provided to reduce the amount of carbon fiber composites piled along the longitudinal direction of the blade. CONSTITUTION: A composite propeller blade (1) for a turboprop aircraft has a skin-spar structure. The skin and the spar of the skin-spar structure are formed by piling up carbon fiber composites made of carbon fiber/epoxy UD prepreg. The number of the piled carbon fiber composites becomes decreased in the longitudinal direction of the propeller blade.