Turbine vane

1. A turbine vane for a gas turbine engine, comprising:

an airfoil including leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface extending from an inner platform in a radial direction to an outer platform; and

wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in at least one of Tables 1-3, wherein the set of Cartesian coordinates in Tables 1-3 have a tolerance relative to the specified coordinates of +/−0.020 inches (+/−0.508 mm), and wherein the set of Cartesian coordinates in Tables 1-3 are offset from a center of an opening located in a forward surface of an attachment lug that extends from a leading edge of the inner platform.

2. The turbine vane according to claim 1 , wherein the turbine vane is a first stage turbine vane.

3. The turbine vane according to claim 1 , wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Tables 1-3.

4. The turbine vane of claim 1 , wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Tables 2 and 3.

5. The turbine vane of claim 1 , wherein the inner platform, the airfoil, and the outer platform are cast as a single part.

6. The turbine vane of claim 1 , wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Tables 1 and 2.

7. A turbine stator assembly for a gas turbine engine, comprising:

a plurality of turbine vanes secured about an axis, each of the plurality of turbine vanes having an airfoil including leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface extending from an inner platform in a radial direction to an outer platform; and

wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in at least one of Tables 1-3, wherein the set of Cartesian coordinates in Tables 1-3 have a tolerance relative to the specified coordinates of +/−0.020 inches (+/−0.508 mm), and wherein the set of Cartesian coordinates in Tables 1-3 are offset from a center of an opening located in a forward surface of an attachment lug that extends from a leading edge of the inner platform by offsets of Table 4 to provide the exterior airfoil surface at a span location.

8. The turbine stator assembly of claim 7 , wherein the turbine stator assembly is a first stage turbine stator assembly of a high pressure turbine of the gas turbine engine.

9. The turbine stator assembly of claim 8 , wherein the inner platform, the airfoil, and the outer platform of each of the plurality of turbine vanes are cast as a single part.

10. The turbine stator assembly of claim 7 , wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by the set of Cartesian coordinates set forth in Tables 1-3.

11. The turbine stator assembly of claim 7 , wherein the inner platform, the airfoil, and the outer platform of each of the plurality of turbine vanes are cast as a single part.

12. The turbine stator assembly of claim 7 , wherein the inner platform, the airfoil, and the outer platform of each of the plurality of turbine vanes are cast as a single part.

13. A gas turbine engine comprising:

a compressor section;

a combustor fluidly connected to the compressor section;

a turbine section fluidly connected to the combustor, the turbine section comprising:

a high pressure turbine coupled to a high pressure compressor of the compressor section via a shaft;

a low pressure turbine; and

wherein the high pressure turbine includes a turbine stator assembly comprising;

a plurality of turbine vanes secured about an axis of the gas turbine engine, each of the plurality of turbine vanes having an airfoil including leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface extending from an inner platform in a radial direction to an outer platform; and

wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in at least one of Tables 1-3, wherein the set of Cartesian coordinates in Tables 1-3 have a tolerance relative to the specified coordinates of +/−0.020 inches (+/−0.508 mm), and wherein the set of Cartesian coordinates in Tables 1-3 are offset from a center of an opening located in a forward surface of an attachment lug that extends from a leading edge of the inner platform by offsets of Table 4 to provide the exterior airfoil surface at a span location.

14. The gas turbine engine of claim 13 , wherein the turbine stator assembly is a first stage turbine stator assembly of the gas turbine engine.

15. The gas turbine engine of claim 13 , wherein the exterior airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by the set of Cartesian coordinates set forth in Tables 1-3.

16. The gas turbine engine of claim 15 , wherein the inner platform, the airfoil, and the outer platform of each of the plurality of turbine vanes are cast as a single part.

17. The gas turbine engine of claim 13 , wherein the inner platform, the airfoil, and the outer platform of each of the plurality of turbine vanes are cast as a single part.