Turbine vane with dust tolerant cooling system

A turbine vane, comprising:

• an airfoil that extends from an inner diameter to an outer diameter, and from a leading edge to a trailing edge;
• an inner platform coupled to the airfoil at the inner diameter;
• an outer platform coupled to the airfoil at the outer diameter, the outer platform in fluid communication with a source of cooling fluid;
• and
• a cooling system defined in the airfoil including a first conduit in proximity to the leading edge to cool the leading edge and a second conduit to cool the trailing edge, the first conduit having an inlet at the outer diameter to receive the cooling fluid and an outlet portion that diverges within the airfoil into at least two flow paths that converge downstream within the airfoil to define an outlet for the first conduit at the trailing edge, the outlet extends axially within the airfoil to the trailing edge, with one of the at least two flow paths defined at least partially within the inner platform, the first conduit includes a plurality of cooling features that extend between a first surface and a second surface of the first conduit, with the first surface of the first conduit opposite the leading edge and the second surface defined on a rib, and the second conduit is defined within the airfoil to extend from a third surface of the rib to the trailing edge with a downstream boundary of the second conduit defined by a fourth surface that extends axially from the third surface, the third surface opposite the second surface and the fourth surface opposite the outlet of the first conduit, the second conduit including a fifth surface that defines an upper boundary of the second conduit, the fifth surface opposite the fourth surface.