Patent ID: 8529212

Claim:
A fan blade, comprising: (a) a first fan blade portion, wherein the first fan blade portion comprises (i) a first end, wherein the first end is configured to be coupled with a fan hub, (ii) a second end, wherein the first fan blade portion has a length extending between the first end of the first fan blade portion and the second end of the first fan blade portion, (iii) a trailing edge, and (iv) a leading edge engagement portion; and (b) a second fan blade portion secured to the first fan blade portion, wherein the second fan blade portion comprises: (i) a first end, (ii) a second end, wherein the second fan blade portion has a length extending between the first end of the second fan blade portion and the second end of the second fan blade portion, (iii) a leading edge, and (iv) an engagement portion engaged with the leading edge engagement portion of the first fan blade portion, wherein the engagement portion comprises a first projection having a first ramped surface and a second projection having a second ramped surface, wherein the first projection and the second projection fit within the leading edge engagement portion; wherein the first fan blade portion and the second fan blade portion together define an airfoil shape at one or more cross sections of the fan blade, wherein the trailing edge of the first fan blade portion defines a trailing edge of the airfoil shape, wherein the leading edge of the second fan blade portion defines a leading edge of the airfoil shape; and wherein the leading edge engagement portion of the first blade portion comprises a first projection, wherein the first projection projects transversely relative to the length of the first blade portion.