Abstract: A rotatable blade for use in a turbomachine includes an airfoil portion having a leading edge, a trailing edge a radially-inner end and a radially-outer end; a root section at to the radially-inner end of the airfoil portion, and a part-span shroud located on the airfoil portion between the root section and the radially-outer end. The part-span shroud decreases in width and thickness from decreasing in width and thickness from the airfoil portion to a contact surface adapted to engage a mating contact surface on a part-span shroud of an adjacent blade.

Abstract: A rotatable blade for use in a turbomachine includes an airfoil portion having a leading edge, a trailing edge a radially-inner end and a radially-outer end; a root section at to the radially-inner end of the airfoil portion, and a part-span shroud located on the airfoil portion between the root section and the radially-outer end. The part-span shroud decreases in width and thickness from decreasing in width and thickness from the airfoil portion to a contact surface adapted to engage a mating contact surface on a part-span shroud of an adjacent blade.

Abstract: A turbine bucket is provided including a bucket airfoil having an airfoil shape, the bucket airfoil having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table 1 wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances in inches by multiplying the Cartesian coordinate values of X, Y and Z by a height of the airfoil in inches, and wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the airfoil profile sections at Z distances being joined smoothly with one another to form a complete airfoil shape.

Abstract: A system for positioning a sensor through an inner barrier and an outer barrier includes a first collar configured for engagement with the inner or outer barriers, a collapsible coupling, and a sensor support connected to the collapsible coupling. The collapsible coupling or the sensor support is in sealing engagement with the first collar, and the first collar, collapsible coupling, and sensor support define a passage therethrough. A method for positioning a sensor includes engaging a first collar to at least one of the inner barrier or the outer barrier and inserting a sensor support connected to a collapsible coupling through the outer barrier. The method further includes connecting the sensor support or the collapsible coupling to the first collar and inserting the sensor through the sensor support.

Abstract: A turbine bucket is provided including a bucket airfoil having an airfoil shape, the bucket airfoil having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table 1 wherein the Cartesian coordinate values of X, Y and Z are non-dimensional values from 0% to 100% convertible to dimensional distances in inches by multiplying the Cartesian coordinate values of X, Y and Z by a height of the airfoil in inches, and wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the airfoil profile sections at Z distances being joined smoothly with one another to form a complete airfoil shape.

Abstract: A system for positioning a sensor through an inner barrier and an outer barrier includes a first collar configured for engagement with the inner or outer barriers, a collapsible coupling, and a sensor support connected to the collapsible coupling. The collapsible coupling or the sensor support is in sealing engagement with the first collar, and the first collar, collapsible coupling, and sensor support define a passage therethrough. A method for positioning a sensor includes engaging a first collar to at least one of the inner barrier or the outer barrier and inserting a sensor support connected to a collapsible coupling through the outer barrier. The method further includes connecting the sensor support or the collapsible coupling to the first collar and inserting the sensor through the sensor support.

Abstract: A turbine includes a turbine wheel having a plurality of buckets, each of the buckets including a bucket airfoil, a bucket dovetail to connect the bucket to a turbine wheel and a shank shape to connect the airfoil to the bucket dovetail, the shank having an uncoated nominal profile including a concave, pressure side, substantially in accordance with Cartesian values of X, Y and Z? set forth in Table I wherein the Z? values are non-dimensional values in a range from 0 to 1 convertible to Z distances in inches by multiplying the Z? values by shank height in inches, and a convex, suction side, substantially in accordance with Cartesian values of X, Y and Z? set forth in Table II wherein the Z? values are non-dimensional values in a range from 0 to 1 convertible to Z distances in inches by multiplying the Z? values by the shank height in inches.

Abstract: A turbine includes a turbine wheel having a plurality of buckets, each of the buckets including a bucket airfoil, a bucket dovetail to connect the bucket to a turbine wheel and a shank shape to connect the airfoil to the bucket dovetail, the shank having an uncoated nominal profile including a concave, pressure side, substantially in accordance with Cartesian values of X, Y and Z? set forth in Table I wherein the Z? values are non-dimensional values in a range from 0 to 1 convertible to Z distances in inches by multiplying the Z? values by shank height in inches, and a convex, suction side, substantially in accordance with Cartesian values of X, Y and Z? set forth in Table II wherein the Z? values are non-dimensional values in a range from 0 to 1 convertible to Z distances in inches by multiplying the Z? values by the shank height in inches.