Dual tip flag

A turbine blade comprising:

• a base;
• a tip radially outward from the base in a radial direction;
• an airfoil section extending from the base to the tip, wherein the airfoil section comprises:
• a leading edge extending radially outward from the base to the tip;
• a trailing edge extending radially outward from the base to the tip and is axially aft of the leading edge in an axial direction;
• a pressure side extending from the leading edge to the trailing edge, and extending from the base to the tip;
• and
• a suction side extending from the leading edge to the trailing edge, and extending from the top side of the platform to the tip, wherein the suction side is opposite the pressure side in a circumferential direction;
• a tip wall at the tip extending axially from the leading edge to the trailing edge;
• a first core passage extending radially from the base to the tip wall between the leading edge and the trailing edge;
• a first flag wall spaced radially inward from the tip wall and extending axially from the first core passage to the trailing edge;
• a first tip flag passage between the tip wall and the first flag wall and extending axially from the first core passage to a first flag outlet on the trailing edge;
• a second flag wall spaced radially inward from the first flag wall, wherein the second flag wall extends axially from the trailing edge toward the first core passage;
• a second tip flag passage radially between the first flag wall and the second flag wall and extending toward the leading edge from a second flag outlet on the trailing edge;
• and
• a second core passage axially between the first core passage and the trailing edge, wherein the second core passage extends from the base to the second tip flag passage, and wherein the second core passage is fluidically connected to the second tip flag passage axially opposite to the second flag outlet.