Abstract
This paper presents the results of marine gas turbine propulsion studies related to small craft of the high-speed planing hull type. These include appraisal of craft performance requirements for both transportation and patrol mission profiles. A substantial increase in both service speed and craft productivity may be realized with gas turbine propulsion. A combined power system is analyzed for loiter/cruise/dash patrol missions, and the operational tradeoff flexibility that may be realized is illustrated. Comparisons of existing gas turbine engine types and their utilization in marine propulsion systems with pump-jets and propellers of both fixed-and controllable-pitch configurations are included. Marine gas turbine power system integration is discussed, with an example illustrating design considerations associated with a turbomarine power system that includes capability of an optional three-mode power-level operation. An appendix describes significant features of several gas turbine test craft.
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