Abstract: A radial-flow turbine wheel for a gas turbine engine includes a Scallop Radius defined between an axis of rotation and the backface between each of the plurality of turbine blades, a Tip Radius defined between the axis of rotation and a tip of each of the plurality of turbine blades such that a Scallop Radius/Tip Radius defines a ratio less than 0.6. This enables a lower temperature scallop region which drives lower transient stresses and increases the Low Cycle Fatigue life of the turbine wheel.

Abstract: In one embodiment, an injection molded doll head having at least two portions is provided. A first portion may have a first mating surface, an alignment indicator and include at least the skullcap portion of a doll head. A second portion may have a second mating surface welded to the first mating surface and may include at least a lower portion of the doll head and a concave inner cavity. The first portion and the second portion may be configured to receive rooted doll hair. Some embodiments may include doll hair rooted above and below a seam defined by the welded mating surfaces.