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Summary of Chosen Propulsion Systems
•Electric drive
•2 Bird-Johnson AWJ-21 water jets
•2 bow thrusters
The Royals Royce AWJ-21, advanced water jet system, incorporates a patented below the water line discharge configuration for improved cavitation performance and stealth. This allows for the elimination of rudder and waterborne shafting.
The relatively compact design of the AWJ-21 in comparison to conventional fixed pitch or controllable pitch propellers results in very low vessel draft. Additionally, water jets are more efficient than open propeller systems, providing higher speeds and less resistance and losses.