Composite fan blade with a recamberable leading edge and method of manufacture

摘要

A method of forming a vibration stable airfoil by forming a composite blade having a metallic sheath (17) thereon. The sheath has a head section (19) extending out from the blade by a sufficient distance to permit deformation of the head section. The airfoil (20) is tested to determine the vibrational stability thereof; and the head section is re-cambered to adjust the vibrational stability to a desired level.