Abstract: A method for refurbishing wicket gates by applying a sheet material to at least a portion of the vane surface of the wicket gate, thus forming a new face. This sheet material may be applied by wrapping the sheet material around the vane surface. The method may further include applying sheet material to the end surfaces of the wicket vane. If end material is applied, it may be sealed to the sheet material of the vane surface.

Abstract: The rotor assembly comprises a shaft, a rim structure, and a spider for connecting the rotor rim to the shaft. The spider structure incorporates a number of rigid arms which are secured to and extend radially from the shaft. The ends of the rigid arms are secured such that free radial motion of the rotor rim is permitted with respect to the spider, but angular motion between the rotor rim and the spider is prevented. The rotor assembly further contains a plurality of flexible cross beams and associated floating arms. The cross beams extend between adjacent spider arms, while the floating arms are firmly connected between the middle section of the cross beams and the inner surface of the rotor rim. The cross beams flex in and out in radial directions as the rotor rim contracts and expands, respectively, due to centrifugal or thermal forces.