Craft outer skin heat exchanger and method for manufacturing a craft outer skin heat exchanger

A method for manufacturing a heat exchanger, comprising the steps:

• arranging a plurality of heat transfer modules side by side so as to define a multilayer body of the heat exchanger,
• providing each heat transfer module with at least one heat transfer medium channel designed to allow a flow of a heat-carrying medium therethrough,
• providing at least one portion of the multilayer body of the heat exchanger with a curvature configured so as to allow the heat exchanger to be used as a curved outer skin section of a craft, and wherein adjacent heat transfer modules of said at least one portion of the multilayer body are arranged with a tilt angle of their central axes towards each other such that each heat transfer module is aligned towards the center of a local osculating circle defined by an outer surface of the heat exchanger.