Computer solutions to nuclear icebreaker propulsion problems

TWISTS AND TURNS of the ¿cold war¿ have directed attention to our polar regions as never before. Scientific curiosity has accompanied this attention, requiring our society to make accessible these frozen regions. Experience of the past decade in establishing large northern outposts ¿ Thule, Greenland, for instance ¿ has been conclusive: The most economical mode of transporting impedimenta to these wastes, for both military and technical personnel, is by sea routes. Sustained air-freight support is prohibitive for any long-range effort at the present stage of fossil fuel use in aircraft.