A locking blade for a rotor, the locking blade comprising: a blade body including a tip at a first end and a root at a second end opposite the first end, the root including a tongue extending away from the tip, wherein the tongue includes a tongue root through hole; and a bucket portion including a bucket dovetail having a blade hook portion, wherein the bucket dovetail is configured to receive and retain the tongue against relative motion with respect to the bucket dovetail, wherein the bucket portion includes a first bucket segment (111; 113) and an opposed, substantially identical second bucket segment (113; 111), each bucket segment (111, 113) including a respective portion of the bucket dovetail that has a respective engagement surface configured to engage the tongue, and wherein each bucket segment (111, 113) further includes a respective bucket through hole that selectively registers with the tongue root through hole, the locking blade further comprising a fastener configured to extend through the root and bucket through holes (119, 129), thereby retaining the tongue against relative motion with respect to the bucket segments (111, 113); and wherein the root further comprises first and second tines extending substantially parallel to and spaced apart from the tongue, each tine including a respective root through hole that registers with the tongue root through hole, and each bucket segment including a flange that selectively projects between a respective tine and the tongue, each flange bearing a respective bucket through hole such that the tongue root through hole, the root through holes of the tines, and the bucket through holes register and the fastener selectively extends therethrough a blade body including a tip at a first end and a root at a second end opposite the first end, the root including a tongue extending away from the tip, wherein the tongue includes a tongue root through hole; and a bucket portion including a bucket dovetail having a blade hook portion, wherein the bucket dovetail is configured to receive and retain the tongue against relative motion with respect to the bucket dovetail, wherein the bucket portion includes a first bucket segment (111; 113) and an opposed, substantially identical second bucket segment (113; 111), each bucket segment (111, 113) including a respective portion of the bucket dovetail that has a respective engagement surface configured to engage the tongue, and wherein each bucket segment (111, 113) further includes a respective bucket through hole that selectively registers with the tongue root through hole, the locking blade further comprising a fastener configured to extend through the root and bucket through holes (119, 129), thereby retaining the tongue against relative motion with respect to the bucket segments (111, 113); and wherein the root further comprises first and second tines extending substantially parallel to and spaced apart from the tongue, each tine including a respective root through hole that registers with the tongue root through hole, and each bucket segment including a flange that selectively projects between a respective tine and the tongue, each flange bearing a respective bucket through hole such that the tongue root through hole, the root through holes of the tines, and the bucket through holes register and the fastener selectively extends therethrough