Patent ID: 8414262

Claim:
A turbine blade comprising: an air foil including a plurality of cooling flow passages through which a cooling medium flows from a leading edge region to a trailing edge region; a top plate which forms the apex of the air foil, has a heat-resistant coating applied on the upper surface thereof, and includes a plurality of cooling holes; and a squealer which protrudes radially outward from the blade from the top plate, and is formed so as to extend from a leading edge end to a starting end of the trailing edge region along a suction-surface-side blade wall in a peripheral direction of the blade, wherein a portion of the top plate between the starting end of the trailing edge region and the trailing edge end is not provided with the squealer, and the height of the top plate is set to be lower than the height of the top surface of the squealer by at least a predetermined value in consideration of variations in the finished height of the heat-resistant coating.