A big thank you for this timely question and reminder since moi's bateaux is
being fitted with the loose foot full batten system, power vang and full
shaping controls. All my die hard cruising friends said overkill since I
don't race but I believe copying the fine tuning techniques of the racers,
(minus that overintense fixation on being first back at the adult
beveragesupply)will nicely enhance my cruising experience. That part about
the top batten and (you must have had me in mind) aft set pair of the four
lower shrouds was perfect. I'm printingthis answer for my cockpit book!

Michael

"Peter S/Y Anicula" wrote in message
...
Addition:
If the shrouds are swept aft, preventing the boom from going out on a
run, it might be nessecarry to ease the vang a bit, to allow the top
batten to have a 90 degree angle to the wind.

Peter S/Y Anicula

"Peter S/Y Anicula" skrev i en
meddelelse ...
Standard answer:
"Downwind, the vang should be trimmed enough to keep the boom down
and
the leech set with the upper batten parallel to the boom."

You would want very little twist, and no part of the main in front
of
the mast -especially if you sail with a spinnaker - since this will
result in rolling and eventually a broach - if you are unlucky - to
windward. Therefore the vang (kicking-strap) should be pulled fairly
hard. If the boat heels and the boom catches the water, be ready to
release the vang very quick.

Peter S/Y Anicula


"Bart Senior" skrev i en meddelelse
et...
How do you determine the proper boomvang tension
when sailing downwind? [1 pt]