| 摘要 |
An airfoil having a composite blade formed from a plurality of plies and having a leading edge and a root for attachment to an engine. The blade has a decreased number of plies at the junction of the blade leading edge and the root. A metallic sheath is attached to the leading edge, wherein the sheath has a portion proximate the junction of sufficient thickness to restore at least a portion of the decreased number of plies
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