A turbine section of a gas turbine engine, comprising: a vane defining a vane cavity; an outer diameter platform coupled to the vane having a platform body defining a platform body channel and a hook defining a hook channel; a transfer tube comprising: a main body having a first end coupled to the hook and defining an inlet configured to receive a flow of fluid from the hook channel and a second end coupled to the platform body and defining an outlet such that the platform body channel can receive the flow of fluid via the outlet, wherein the main body has a curved section, a first straight section positioned between the first end and the curved section having a first distance, and a second straight section positioned between the second end and the curved section having a second distance; a first mating face coupled to the first end of the main body; and a second mating face coupled to the second end of the main body; wherein the transfer tube is configured to allow fluid to flow between the hook and the platform body; wherein the flow of fluid received by the inlet is in an axial direction and the flow of fluid flowing out of the outlet is in a radial direction; and wherein the first mating face is coupled to the hook, and the second mating face is coupled to the platform body; and characterised by a first flange coupled to the first end and a second flange coupled to the second end, the first flange defining the first mating face and the second flange defining the second mating face, wherein the first flange is welded or brazed onto the hook and the second flange is welded or brazed to the platform body. a vane defining a vane cavity; an outer diameter platform coupled to the vane having a platform body defining a platform body channel and a hook defining a hook channel; a transfer tube comprising: a main body having a first end coupled to the hook and defining an inlet configured to receive a flow of fluid from the hook channel and a second end coupled to the platform body and defining an outlet such that the platform body channel can receive the flow of fluid via the outlet, wherein the main body has a curved section, a first straight section positioned between the first end and the curved section having a first distance, and a second straight section positioned between the second end and the curved section having a second distance; a first mating face coupled to the first end of the main body; and a second mating face coupled to the second end of the main body; wherein the transfer tube is configured to allow fluid to flow between the hook and the platform body; wherein the flow of fluid received by the inlet is in an axial direction and the flow of fluid flowing out of the outlet is in a radial direction; and wherein the first mating face is coupled to the hook, and the second mating face is coupled to the platform body; and characterised by a main body having a first end coupled to the hook and defining an inlet configured to receive a flow of fluid from the hook channel and a second end coupled to the platform body and defining an outlet such that the platform body channel can receive the flow of fluid via the outlet, wherein the main body has a curved section, a first straight section positioned between the first end and the curved section having a first distance, and a second straight section positioned between the second end and the curved section having a second distance; a first mating face coupled to the first end of the main body; and a second mating face coupled to the second end of the main body; wherein the transfer tube is configured to allow fluid to flow between the hook and the platform body; wherein the flow of fluid received by the inlet is in an axial direction and the flow of fluid flowing out of the outlet is in a radial direction; and wherein the first mating face is coupled to the hook, and the second mating face is coupled to the platform body; and characterised by a first flange coupled to the first end and a second flange coupled to the second end, the first flange defining the first mating face and the second flange defining the second mating face, wherein the first flange is welded or brazed onto the hook and the second flange is welded or brazed to the platform body.