Analysis of gas turbine-powered naval ships of 500- to 4000-ton size has been performed for ocean escort and patrol missions with performance levels appropriate to gas turbines of both current and advanced technology. The use of gas turbine systems allows the realization of high mission effectiveness with relatively small ships. For advanced marine gas turbines, the most significant ship benefit would result from increased thermal efficiency of cruise engines by means of regenerative cycles. A secondary improvement, particularly for high dash speeds, would be the reduction of specific weight for dash engines. With such advanced gas turbines, ship sizes may be further reduced for given mission capabilities.

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