An experimental investigation has been conducted of the convective heat transfer of an inclined rectangular plate with blunt edges. A surface heating film provides a uniform wall flux boundary condition with temperature measurement by thermocouples. The measured heat transfer distributions are consistent with analytical data for attached boundary-layer flows over inclined plates. For orientations at which more complicated flow patterns exist, both average values and the local heat transfer distribution are discussed in the light of the flow pattern around the plate. Overall, the heat transfer distribution is very sensitive to plate orientation but almost independent of velocity in the range studied.