The methods used for fabrication of finned aluminum-clad flat plate fuel elements are discussed. Uranium—3.5 w/o Molybdenum alloy core plates were fabricated by vacuum casting in graphite molds. The uranium alloy plate was electroplated with nickel and inserted into an extruded aluminum sheath containing external fins. Aluminum end plugs were inserted to complete the fuel plate assembly. A core-to-cladding metallurgical bond was obtained by hot gas pressing (isostatic pressing) the assembly. Bonded plates were end machined, inspected, stacked, clipped, and loaded into a stainless steel container box. Cast stainless steel end hardware was then affixed by heliarc welding to the respective box ends to result in the completed fuel element. Methods for process control are discussed. Preliminary irradiation results are presented which indicate that the elements produced by the described process are suitable for organic moderated reactor use.