Abstract
Westinghouse Electric Corporation was the early leader in railgun technology in the 1980s and developed the 16 to 30 MJ stored energy homopolar-generator (HPG) powered system, EMACK, which provided the highest muzzle energy of any railgun from 1982 to 1988 during testing at Westinghouse Research and Development Center, Pittsburgh, PA, USA, and after installation at ARDEC, Picatinny, NJ, USA. Details of the design, components, and fabrication of EMACK are provided here, and results from the abbreviated initial testing are included. Many scientists, engineers and technical staff who worked on the project described here some 30 to 40+ years ago have by now mostly retired, moved on to other activities, or sadly, in several cases, are deceased. However, it would be remiss if their pioneering efforts were not recognized, and this article attempts to do that. Prospects for future energy storage and pulsed power developments using HPGs and more recent developments are also discussed.
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