A method and apparatus for heat-dissipation in an avionics chassis can include a housing having an outer surface, defining an exterior of the housing, an inner surface, defining an interior of the housing, and a set of walls at least partially separating the exterior of the housing from the interior of the housing, a heat generating component located within the interior of the housing, and a thermal plane thermally coupled to the heat generating component and configured to direct heat away from the heat generating component.