THE ARCTIC SURFACE EFFECT VEHICLE PROGRAM

Abstract

ABSTRACTThe potential of the Surface Effect Vehicle (SEV) for operating in the Arctic was investigated. Investigation and development of the technology, for vehicle systems was undertaken as well as definition of the unusual and severe environmental conditions encountered. Photographic and laser data were taken and summarized to establish the surface characteristics of the sea ice in the Arctic Ocean as well as topographic features of coastal and land areas. First‐hand experience was gained in the Arctic during a six‐month test program with an SK‐S SEV at Barrow, Alaska.Designs for SEV's up to 1,000‐tons gross weight with speed capabilities up to 120 knots were prepared. Numerous skirt designs were tested over simulated terrain to establish feasibility of skirts higher than those currently in use. The prediction of the dynamic response of SEV's operating at high speeds over ice and other rough terrain required analytical programs different from those used for operations over water.The detection of ice ridges and estimation of their height is required for high speed operation, and a system utilizing a 95GHz radar was designed and tested. Specific designs of 150‐ton and 500‐ton vehicles were developed to establish their feasibility for conducting long‐range Arctic missions.