[C38] Starboard VS Port ( Alden Andre)

Wed Jun 3 13:49:20 EDT 2009

Steve , here are my 25 cents worth.
1. some c-38 people in the past have found that their mast step was not
centered in the boat.

2. your rigging might be off and needs to be tuned at the dock and while
sailing.

3. you need to check while sailing the degrees you can point both left
and right. Now doing this the cars need to be in the same positions and
you need to measure the sheet lines left and right so they are the same
distance from the sail to the car. I have a st60 package so I can see
the same angles from the apparent wind wich makes this easier but you
can also do this by stopping looking at your wind vane point directly
into the wind(record heading) set the sheet and use the telltales to see
when you are trimmed(doing this with the main down)then let the boat
accelerate to its top speed and when you get to top speed with tell
tales trimed look at your compass heading . then repeat for the opposite
side. I would also do this with your main without the head sail you will
sail wider angles but get the same results. Then compare the angles from
left and right.

4. Now correct me if I am wrong but I read in your email that when using
your chute you saw the speed difference. My question is where you using
the same spinnaker halyard for both left and right runs.If your mast is
the same as mine I have two spinnaker halyard bails that go out 30-40
degrees to the left and right (aprox 3-4 inches apart LH-RH) . If you
are using the same one your speed will be off due to the center of
effort on the spinniaker going from top to middle that 3-4 inches
translates to aprox 8-12 inches at the middle of the chute. You can see
the sail shape differences more on the ASYM in the way it flys vs the
sym going left and right using the same spinnaker bail.

5.The issue of weight I cant help you there. My boat has so much junk on
it, if I optimized it for total racing I would gain 3 inches of water
line. It wasn't until last year and continuing badgering from my race
crew I finally removed the 350 ft of chain from the nose and 250 feet of
chain from the rear of the boat. But I refuse to remove anything else.
Now I have the main battery bank located in the standard place but also
a back up bank under the rh setee. I don't notice a list to one side or
the other. Of course my paint lines may be off.

6. I guess the only other thing I can think of is your rudder, is it
perfectly strait? I buy and sell corporate jets for a living and you
would think that a multi million dollar asset would be built perfect but
what I have found through the years is that even airplanes are not built
perfect and strait. Some the wings are mounted off a little and some the
engines are not mounted strait being a few degrees off. But the great
thing about a sail boat is you can always adjust your rigging or sail
trim to compensate for errors of the manufacture.

7. Well those are my thoughts .With that and 25cents you cant even buy a
cup of coffee up there in Seattle. Keep up the racing I actually saw
your name in 38 degree north yesterday on a race you did. There are two
C-38s racing the summer series hear in Portland this year I need to get
another boat out this season so we can have our own class. Of course I
have yet to be on my boat this year racing due to I am the SYSCO race
Capt and have been running the races. It is nice though to see your boat
go by the committee boat c-38s are just so pleasing to they eye(even
better win they are winning).

Alden Andre
Cell: 503-929-8814
Office: 503-618-1951
Fax: 503-907-5507
Alden at clifforddevelopmentgroup.com

-----Original Message-----
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Today's Topics:

   1. Re: starboard vs port performance (Bob Porter)

----------------------------------------------------------------------

Message: 1
Date: Wed, 3 Jun 2009 11:42:40 -0400
From: "Bob Porter" <hiawatha at localnet.com>
Subject: Re: [C38] starboard vs port performance
To: "Catalina 38 Listserve" <listserve at catalina38.org>
Message-ID: <862C004B201644638B785E7B416B72D7 at YOUR8D60784E1D>
Content-Type: text/plain; charset="iso-8859-1"

Hi Guys;

First thing, check the knot meter with a GPS. Often the knot meter is
biased to one tack (or jibe).

Also, take a look at the keel. Some are twisted left or right. Mine is
centered but not completely symetrical even though I have spent
hundrteds of hours trying to true it. Templates and all.

Bob Porter
Hiawatha
  ----- Original Message ----- 
  From: Phil Gay 
  To: 'Catalina 38 Listserve' 
  Sent: Wednesday, June 03, 2009 1:33 AM
  Subject: Re: [C38] starboard vs port performance

  I was sailing our C38 out of Everett, WA (about 25 miles north of
Steve) this afternoon in about 12 knots true and I noticed that we were
about 1 knot faster on a port tack close hauled than on a starboard
tack.  Que Linda lists to port also, so I tuned the mast to starboard a
little to make the mast more vertical.  I don't know if I did a good
thing or not.  My knot transducer is ahead of the keel about 3 feet so I
doubt that turbulence has much effect on it.  Any ideas?

  Phil Gay

  C38 049 Que Linda

  Everett, WA

  From: listserve-bounces at catalina38.org
[mailto:listserve-bounces at catalina38.org] On Behalf Of Steve Smolinske
  Sent: Tuesday, June 02, 2009 10:07 PM
  To: Catalina 38 Listserve
  Subject: [C38] starboard vs port performance

  Hello all, 

  hoping you more experienced Cat 38 racers can help me out. But first I
have to say Wow flying a spinnaker on our boats is a kick in the #$$!
We were last off the line with a crew excluding myself and bowman who
had never even touched a spinnaker, so by the time we walked them
through the deployment we were a good 500 yards back of 8 boats and in
last place, within 20 minutes we were out in front by the same distance.
The story isnt so good after that due to bad calls at the helm so Ill
stop there, but was that ever fun just walking past them with so little
effort.   

  We noticed that on port tack we were much faster by about a knot,
sheets led to the same spot, trim looked good, but nothing seemed to
help on starboard.   Im wondering is it because of the weight of the
batteries, galley and head all on port that help to bring down that side
a little more when on a port tack?  Apparent was about 13, could it have
been wave direction?  Our boat sitting at the dock does have a slight
list to port.   As always thanks for the help.  

  Steve

  Peregrine #312

  Seattle

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