On Wed, 29 Oct 2008 06:55:19 -0700 (PDT), Len
wrote:

On our crossings we normally have a downwind course. When the wave's
come in at say between 120 and 160 degrees our boat tends to roll a 10
degrees over starboard and 10 degrees over port. What I do is getting
the weight as low as possible, even out as much as possible the sail
surface's at port and starbord, and sometimes steer another course. I
wonder if you are familiar with any further techniques I havent
thought of yet.

Changing course is the easy, low cost solution. If you want
something better than that, you might want to consider flying
paravanes from twin whisker poles. It takes quite a bit of rigging
and practice to get them set them up properly and deployed safely.
They are quite effective however as demonstrated by the thousands of
commercial fishing trawlers that use them.

http://www.boatexec.com/Paravanes.htm

http://www.tsb.gc.ca/en/reports/mari...4_Figure_2.gif

http://www.kolstrand.com/index_files/stabilizer.htm

Wayne.B wrote:
Changing course is the easy, low cost solution.

Most effective, too

...* If you want
something better than that, you might want to consider flying
paravanes from twin whisker poles. * It takes quite a bit of rigging
and practice to get them set them up properly and deployed safely.

They can be a handful... there's a very good Navy manual on rigging &
handling paravanes, intended for minesweeps though.

I wonder if a single paravane deployed from a higher lever arm (like a
sailboat mast) could be effective at reducing heeling & rolling

Fresh Breezes- Doug King

On Wed, 29 Oct 2008 18:51:53 -0700 (PDT), wrote:

I wonder if a single paravane deployed from a higher lever arm (like a
sailboat mast) could be effective at reducing heeling & rolling

Height is useful for reducing tension on the paravane topping lift.
Using a single paravane upwind to reduce heeling is an interesting
idea. Of course you need some way of getting it out away from the
boat to create a longer lever arm and prevent inadvertant hull
strikes. Single paravanes create an asymetric righting force which is
considered dangerous on fishing trawlers, and believed to have caused
several capsize incidents. Upwind on a sailboat it would greatly
increase time and effort to tack but that would not normally be an
issue on a long offshore passage.