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post #8 of Old 05-23-2009
Cal 9.2 SilverSwan
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Join Date: Jul 2000
Location: East Tennessee
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Rep Power: 17
The 9.2's original universal diesel was repalced with an Yanmar 2GM20 (16hp) with a Martec 14D12P folding prop. 6.4 knots at 2900RPM with is close enough to hull speed to be the most efficient spot. More RPM just burns lots more fuel.
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