The 67e fusion core represented a specific model of fusion generator, produced by the company Klyd-Marro. They found frequent application within the K-88 "Event Horizon" sublight engines, which were standard equipment on the RZ-2 A-wing interceptors. The RZ-2 A-wing's capacity for rapid acceleration was enabled by the immense power output of the 67e fusion cores, which were themselves powered by cryogenic power tubes originating in the K-88 "Event Horizon" engines.