[Rhodes22-list] CenterBoard Angle-Tiller-Test

Sat Mar 10 10:46:43 EST 2007

Lee,
If you are looking for an alternative or backup for short distance transit, I am just about to do a trial run on a skulling rudder blade I designed for Mary Jane.  I'll keep you posted if you want.  I don't think I would give up my 4s Tohatsu for an electric.  If need be, I'll just paint it green...
Art

-----Original Message-----
>From: Hank <hnw555 at gmail.com>
>Sent: Mar 8, 2007 4:28 PM
>To: The Rhodes 22 mail list <,rhodes22-list at rhodes22.org>
>Subject: Re: [Rhodes22-list] CenterBoard Angle-Tiller-Test
>
>Yeah, but then you get one of those damn stinkpot drivers running over the
>cord and then the wind dies and what are you going to do?
>
>Hank
>
>
>On 3/8/07, KUHN, LELAND <LKUHN at cnmc.org> wrote:
>>
>>
>> I guess my test should be with a close reach, which means I won't be
>> traveling back and forth between two GPS points.  I'll try two equal
>> distances.
>>
>> I could care less about being green, but if someone is producing an
>> electric outboard, I'm interested.  I don't need much power, and
>> electric motors seem much more hassle-free.  I mostly daysail, so the
>> extension cord wouldn't need to be more than a few miles long.
>>
>> Lee
>>
>> -----Original Message-----
>> From: KUHN, LELAND
>> Sent: Thursday, March 08, 2007 3:42 PM
>> To: rhodes22-list at rhodes22.org
>> Subject: Re: [Rhodes22-list] CenterBoard Angle-Tiller-Test
>>
>>
>> Bill:  As usual, good advice.  Especially about tiller pressure.
>>
>> Hank & John:  Temperatures are going from ridiculously cold this morning
>> to
>> near 60 degrees in a couple of days.  Come heck or high water, this
>> weekend
>> I plan to test this theory about course vs. distance traveled.
>> Hopefully
>> the wind will be steady enough long enough.  I was planning on sailing
>> between two GPS coordinates and back; one way with the board up and one
>> way
>> with the board down.  As I was thinking about this, it brought up
>> another
>> question:
>>
>> If I'm on a close reach, for example, and I tack and head out on another
>> close reach; I swear my boat sails faster in one direction than the
>> other.
>> I'll be testing that this weekend too.  When docked, my boat sits flat
>> in
>> the water.  My 9.9 Merc isn't light, but then neither are the galley and
>> head on the opposite starboard side.  Maybe it's weight distribution
>> fore
>> and aft as much as starboard and port.   Maybe it's just my imagination.
>>
>> Maybe I need to get rid of my Merc.
>>
>> Lee
>>
>>
>>
>> john Belanger wrote:
>> >
>> > doesn't the essential arguement come down to the same thing. speed
>> over
>> > the course vs. distance travelled to get to a given point? are you
>> getting
>> > there quicker if you cant your bow off a few degrees to windward to
>> > compensate for drift and get an increase in your speed by having the
>> board
>> > up ie less wetted surface?
>> >
>> > Hank <hnw555 at gmail.com> wrote:  Lee,
>> >
>> > You may be going faster with the centerboard up, but you will not be
>> > making
>> > better time toward your target due to sideways drift. I big function
>> of
>> > the
>> > centerboard is to prevent the boat from drifting sideways when
>> reaching.
>> > The only time a centerboard is not really needed is when sailing down
>> > wind.
>> > Of course, it doesn't really matter if you are not trying to get to a
>> > specific destination such as when racing. If you don't care about the
>> > drift, then leave it up.
>> >
>> > Hank
>> >
>> >
>> > On 3/8/07, KUHN, LELAND wrote:
>> >>
>> >>
>> >> Bud,
>> >>
>> >> I've only sailed the Rhodes for a year, so I hope I'm not giving you
>> bad
>> >> advice.
>> >>
>> >> If I want to point into the wind as much as possible, I'll put the
>> >> centerboard all the way down. I'll also use the traveler and inside
>> >> leads to flatten the sails. I've found that it's rare that I need
>> that
>> >> extra five degrees into the wind to get to where I want to go.
>> >>
>> >> The centerboard can be used as a depth finder, but even with the soft
>> >> mud bottom of the Chesapeake, you never know what you're going to
>> hit.
>> >> At the very least it will knock off your bottom paint.
>> >>
>> >> The centerboard acts as a pivot point, allowing you to make sharper
>> >> turns. Don't really need it for tacking but could come in handy
>> >> motoring around the marina. The boat turns sharp enough for me
>> without
>> >> the board down.
>> >>
>> >> Depending on your point-of-sail, wind, waves, and current; the
>> >> centerboard will help balance the boat and take pressure off the
>> tiller.
>> >> I notice this really helps if I have too much sail out. I usually
>> >> adjust the sails to balance the boat.
>> >>
>> >> As a newbie, I constantly check my speed to see what works best in
>> all
>> >> conditions. I have put the board up and down in every condition, and
>> I
>> >> am convinced that the drag from the centerboard will always slow you
>> >> down. In most cases, I believe the centerboard's ability to keep you
>> >> sailing in a straight line doesn't make up for the decrease in speed.
>> I
>> >> might be wrong on that last statement.
>> >>
>> >> In my limited experience, the centerboard is a tool that you rarely
>> need
>> >> and will slow you down. I guess what surprised me was that most boats
>> >> sail fastest on a close reach, due to the opposing pressures from the
>> >> sails and keel (squeezing a watermelon seed analogy). On a close
>> reach
>> >> with a Rhodes, you will still go faster with the centerboard up.
>> >>
>> >> If it sounds like I know what I'm talking about, reread the first
>> >> sentence. :)
>> >>
>> >> Lee
>> >> 1986 Rhodes22 At Ease
>> >> Crab Alley (Kent Island, MD)
>> >>
>> >>
>> >> -----Original Message-----
>> >> From: Peter Thorn [mailto:pthorn at nc.rr.com]
>> >> Sent: Thursday, March 08, 2007 6:18 AM
>> >> To: The Rhodes 22 mail list
>> >> Subject: Re: [Rhodes22-list] CenterBoard Angle
>> >>
>> >> Bud,
>> >>
>> >> I'll add my 2 cents, in short: upwind all down, downwind all up.
>> >>
>> >> The Rhodes has a very light, balanced helm. With a large (175)
>> headsail
>> >> and
>> >> smaller (not-newer vertical battened) main there can be a tendancy to
>> >> leeward helm in light air. As the boat heels when the breeze picks up
>> >> this
>> >> is mitigated. So with the sailplan center of effort (CE) forward (the
>> >> rig
>> >> described above) the underwater fin's center of lateral resistance
>> >> (CLR),
>> >> which can be adjusted by the centerboard, also needs to be as forward
>> as
>> >> possible.
>> >>
>> >> Another of the many advantages to having a centerboard is that you
>> can
>> >> change the CLR while underway by adjusting the board. In heavier air,
>> >> when
>> >> you would expose less area on the headsail going to windward, you can
>> >> balance by raising the centerboard just a little.
>> >>
>> >> PT
>> >>
>> >> ----- Original Message -----
>> >> From: "Mary Lou Troy"
>> >> To: "The Rhodes 22 mail list"
>> >> Sent: Wednesday, March 07, 2007 9:42 PM
>> >> Subject: Re: [Rhodes22-list] CenterBoard Angle
>> >>
>> >>
>> >> > Bud,
>> >> > I think it's just about vertical. Unless you are sailing in a very
>> >> > weedy area, I don't think having the pennant exposed is a problem.
>> >> > It's just as likely to get fouled by growth in the slot. Our's
>> seems
>> >> > to stay cleaner the more we use it. We always pull the board up at
>> >> > anchor or when we leave the boat in the slip but sailing upwind it
>> is
>> >> > always down as far as it will go. As Wally said, as we move off the
>> >> > wind we start pulling the board up.
>> >> >
>> >> > Mary Lou
>> >> > 1991 R22 Fretless
>> >> > Rock Hall, MD
>> >> >
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > At 08:39 PM 3/7/2007, you wrote:
>> >> > >Thanks to all who responded! Mary Lou - when you say all the way
>> >> > >down, you mean the CB is nearly vertical?
>> >> > >Do you run into any problems with the pennant line or sheaves
>> >> > >exposed in that running configuration?
>> >> > >I had thought the sheaves might get "gunked up" if they were
>> exposed.
>> >> > >
>> >> > >Thanks again,
>> >> > >Bud
>> >> > >
>> >> > >Mary Lou Troy wrote:
>> >> > >
>> >> > >>Bud,
>> >> > >>Fretless is a 1991. We usually sail with the board all the way
>> >> > >>down. Exceptions are downwind or very shallow water.
>> >> > >>
>> >> > >>Mary Lou
>> >> > >>1991 R22 Fretless
>> >> > >>Rock Hall, MD
>> >> > >>
>> >> > >>At 09:35 PM 3/6/2007, you wrote:
>> >> > >>
>> >> > >>>Rummy,
>> >> > >>> I have a 1990 R22, and I am pretty sure I do not have a
>> "diamond"
>> >> board.
>> >> > >>>
>> >> > >>>Thanks,
>> >> > >>>-Bud
>> >> > >>>
>> >> > >>>
>> >> > >>>R22RumRunner at aol.com wrote:
>> >> > >>>
>> >> > >>>>Bud,
>> >> > >>>>It depends on what year and centerboard design you have?
>> >> > >>>>Rummy
>> >> > >>>>
>> >
>> >
>> > **************************************
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>> >> > >>>>
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>> >> > >>>--
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>> >> > >>>3/5/2007 9:41 AM
>> >> > >>
>> >> > >>
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>> >
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