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The rudders lift the hull, making it at least semi-displacement if not full
displacement. You can't beat physics!
Keith
_____
You know you've hit the dock hard if it takes all your bilge pumps running
at full power for you to step onto the dock.
----- Original Message -----
From: "John Holbrook" <>
> Interest design appears to use two rudders space far apart at the stern. I
> would guess that at higher speeds the rudders are turned a few degrees
> out, port rudder to stb and stb rudder to port to give the stern some
> lift.
>
> Also interesting to see the lightship weight at 32,000lbs. Makes me
> wonder why typical 50ft trawlers are nearly twice that.
>
> http://www.powersail.co.nz/model_test.html
>
> http://www.powersail.co.nz/15m_data.html
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