A cooling circuit disposed between a first wall portion and a second wall portion of a wall suitable for use in a gas turbine engine, comprising: a forward end, an aft end, a first side and a second side, wherein the cooling circuit extends widthwise between the forward and aft ends (44, 45) and radially between the first and second sides; a plurality of inlet apertures disposed in said first wall portion proximate said aft end, said inlet apertures provide a flow path of cooling air into the cooling circuit; a first exit slot disposed radially in said second wall portion proximate said forward end, said first exit slot provides a cooling air flow path out of the cooling circuit; and a plurality of pedestals (60....66; 90....94) extending between said first wall portion and said second wall portion, said pedestals accelerating and turbulating the cooling air passing therebetween, said pedestals being arranged in rows (50....56; 80....84) offset from one another; a first radially elongated pedestal (68;96) extending between said first wall portion and said second wall portion, said first radially elongated pedestal between said pedestals and said first exit slot, said first radially elongated pedestal uniformly distributing the cooling air through said first exit slot; a second radially elongated pedestal extending between said first wall portion and said second wall portion, said second radially elongated pedestal between said pedestals (60....66) and said first exit slot, said first and second elongated pedestals separated by a gap, wherein the cooling air passes in part around said first and second radially elongated pedestals and in remaining part through said gap to exit through said first exit slot in a uniform flow pattern; characterised in that, said first radially elongated pedestal includes a projection adjacent to said first exit slot, said first radially elongated pedestal causes streamlines of the cooling air to flow around said first radially elongated pedestal at varying angles relative to a main streamline formed at said gap, wherein said second radially elongated pedestal includes a projection adjacent to said first exit slot, said second radially elongated pedestal causes streamlines of the cooling air to flow around said second radially elongated pedestal at varying angles relative to said main streamline, said streamlines of the cooling air of said first and second radially elongated pedestals do not intersect each other upon exiting said first exit slot. a forward end, an aft end, a first side and a second side, wherein the cooling circuit extends widthwise between the forward and aft ends (44, 45) and radially between the first and second sides; a plurality of inlet apertures disposed in said first wall portion proximate said aft end, said inlet apertures provide a flow path of cooling air into the cooling circuit; a first exit slot disposed radially in said second wall portion proximate said forward end, said first exit slot provides a cooling air flow path out of the cooling circuit; and a plurality of pedestals (60....66; 90....94) extending between said first wall portion and said second wall portion, said pedestals accelerating and turbulating the cooling air passing therebetween, said pedestals being arranged in rows (50....56; 80....84) offset from one another; a first radially elongated pedestal (68;96) extending between said first wall portion and said second wall portion, said first radially elongated pedestal between said pedestals and said first exit slot, said first radially elongated pedestal uniformly distributing the cooling air through said first exit slot; a second radially elongated pedestal extending between said first wall portion and said second wall portion, said second radially elongated pedestal between said pedestals (60....66) and said first exit slot, said first and second elongated pedestals separated by a gap, wherein the cooling air passes in part around said first and second radially elongated pedestals and in remaining part through said gap to exit through said first exit slot in a uniform flow pattern; characterised in that, said first radially elongated pedestal includes a projection adjacent to said first exit slot, said first radially elongated pedestal causes streamlines of the cooling air to flow around said first radially elongated pedestal at varying angles relative to a main streamline formed at said gap, wherein said second radially elongated pedestal includes a projection adjacent to said first exit slot, said second radially elongated pedestal causes streamlines of the cooling air to flow around said second radially elongated pedestal at varying angles relative to said main streamline, said streamlines of the cooling air of said first and second radially elongated pedestals do not intersect each other upon exiting said first exit slot.