Reflex Waterjet Design Study for Application to the AAAV High Water Speed Amphibian
Final rept. 10 Oct 90-26 Apr 91,
HIGH PERFORMANCE MARINE PRODUCTS SPRINGFIELD MO
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A novel alternative configuration for waterjets was optimized and evaluated for application to high water speed amphibians, like the planned AAAV. The concept demonstrated good performances in two generations of prototypes and a production run of units about half the size required for this application. Optimization analysis was based on methods confirmed by tests of the earlier units. Results show jet will provide satisfactory performance. Limited data indicates improved system performance will be realized from elimination of forward intakes of conventional waterjets. The optimization study showed a 16 inch waterjet to be optimum for the application. Adequate design engineering was performed to assure feasibility of the proposed design and availability of the needed components. The waterjet compares favorably to conventional designs in length, weight, maintainability, affordability and program risk. Installation studies show four jets can be installed on the proposed transom flap and will not project above the hull when retracted. An alternate transom flap design, optimized for these jets, provided a low level walkway for troop entry when the flap is deployed and a troop door to permit entry without lowering the transom flap.
- Surface Effect Vehicles and Amphibious Vehicles
- Marine Engineering