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. |
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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. |