A prototype 2000-gpm, high seas oil recovery system has been designed and built by Ocean Systems, Inc., and tested to determine its basic performance characteristics. The recovery system consists of a weir/basin assembly, a transfer and control system, and auxiliary gear, including a handling system, packaging system, and a flotsam fence. The transfer system includes four hydraulic-motor-driven gear pumps, a 300-foot long, ten-inch diameter transfer hose, a diesel/hydraulic power supply, a 300-foot hydraulic umbilical, an oil-water interface sensor array and a remote control system. System tests included a test of the transfer system, component assembly, air transport, and finally oil recovery operations in a test pond. The pond tests were conducted at Battelle Northwest, Richland, Wa, in a large concrete tank. Tests were performed using both light and heavy fuel oils in calm water and in two-foot waves and at tow speeds up to 2.67 knots.