Second stage turbine blade

A turbine blade comprising:

• a blade root;
• a platform extending from the blade root;
• an airfoil extending from the platform, the airfoil having an airfoil shape within an envelope of approximately −0.032 to +0.032 inches in a direction normal to any surface of the airfoil, the airfoil having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1 wherein the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by a height of the airfoil in inches, and wherein the X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape, and,
• a shroud extending from the airfoil tip.

A turbine comprising:

• a turbine wheel positioned along an engine centerline;
• a plurality of turbine blades secured to the turbine wheel, each turbine blade comprising:
• a blade root;
• a platform extending radially outward from the blade root;
• an airfoil extending radially outward from the platform, the airfoil having an airfoil tip and an airfoil shape, the airfoil having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1 wherein the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by a height of the airfoil in inches, and wherein the X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape;
• and,
• a shroud extending from the airfoil tip.

A turbine comprising:

• a turbine wheel positioned along an engine centerline;
• a plurality of turbine blades secured to the turbine wheel, each turbine blade comprising:
• a blade root;
• a platform extending radially outward from the blade root;
• an airfoil extending radially outward from the platform, the airfoil having an airfoil tip and an airfoil shape within an envelope of approximately −0.032 to +0.032 inches in a direction normal to any surface location of the airfoil, the airfoil having a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1 wherein the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by a height of the airfoil in inches, and wherein the X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape;
• and,
• a shroud extending from the airfoil tip.