[C320-list] upwind mainsail trim

[Steve Magennis]

Stan, we can cheat and vang sheet.  That allows us to use the main
sheet to adjust the boom position, use the vang to adjust the twist,
and lock the traveler on center.  When I'm on a run, it's easier (and
quicker) to get good sail trim that by vang sheeting than it is to
adjust the traveler and the main sheet.  In addition, when we round the
leward mark, we only have to adjust the main sheet quickly as we can
pre-position the traveler to the expected upwind position.

Steve
Alchemsit #909

--- Stanley Rogacevicz <SROGACEV at holycross.edu> wrote:

> CRA,
>    Well... if you never need or want to go in a certain direction at
> a
> good speed then of course it doesn't matter..... but if you fall off
> from close to the wind to a reach that's when your traveler is needed
> to
> keep the main trimmed for speed. If you simply ease the main sheet
> your
> boom will go to leeward where you want it... but - look up - the main
> is
> now twisted and you are spilling all your air from the top half of
> the 
> main. That's fine if the wind has picked up and you want to keep the
> heeling and weather helm under control -  but you are losing speed.
> If 
> you instead ease the traveler your boom goes to same place (as above)
> leeward to keep in tune with the shifted wind - but it is still
> giving
> you all the power it has. If you still need to twist off/spill some
> air
> you still can ease the main to stay as relaxed and upright as you
> wish.
> Stan
> (formerly) Christy Leigh
> c320 #656
> Wickford/Narragansett Bay RI
> 
> >>> crashley at gte.net 5/17/2006 12:50 AM >>>
> My thought is that unless you really need to go in a certain
> direction
> 
> (i.e., very close to the wind), you will never have to use the
> traveler
> at 
> any setting but centered. Am I right or is there some other
> compelling
> 
> reason to use it? Maybe I'm just lazy, and don't race.
> 
> CRA
> Rosebud #882
> 
> 
> ----- Original Message ----- 
> From: "Joe Barrett" <joe at dolphinmortgage.com>
> To: "'C320-List'" <C320-List at catalina320.com>
> Sent: Tuesday, May 16, 2006 1:19 PM
> Subject: Re: [C320-list] upwind mainsail trim
> 
> 
> > Hi Mike, assuming the mainsheet was already trimmed in hard from
> the
> > previous tack the traveler we would leave the traveler slightly
> down
> from
> > centerline as the Jib Trimmer brings in the big 155 Genoa. As the
> Genoa
> > comes in we would then head up until in a closehauled position. At
> that 
> > time
> > the boom would be just slightly off the centerline of the boat.
> > Seems to work OK,
> > Joe Barrett
> >
> > -----Original Message-----
> > From: C320-List-bounces at catalina320.com 
> > [mailto:C320-List-bounces at catalina320.com] On Behalf Of Lachance,
> Michael 
> > B
> > (ISD, IT)
> > Sent: Tuesday, May 16, 2006 3:32 PM
> > To: C320-List
> > Subject: Re: [C320-list] upwind mainsail trim
> >
> > Question for you racers out there... Going upwind, how close to the
> > centerline do you place the boom before starting to work on the
> other
> > mainsail controls for optimum speed and pointing? Do you initially
> > position the boom right on or just off the centerline or
> considerably
> > eased from that position?
> > Mike
> >
> >
> >
>
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