Frangible fan blade

摘要

The present invention relates to a fan blade (34) in an axial gas turbine engine. The blade platform (46) is constructed to fracture adjacent the airfoil portion (48) of the blade so as to locate the fractured edge of the platform in the root portion (44). As a result of this benign platform, damage to successive fan blades during a blade loss condition is reduced. In addition, various construction details are developed in the airfoil and root portion of the fan blade to reduce damage to fan blades during impact with adjacent blades. <IMAGE>