[Rhodes22-list] Diamond Board Depth

[Leland]

Chris,

Several years ago I measured 45 degrees in a 12 knot wind, serious chop,
full main pulled tight with the traveler centered, board down, boom down,
hands-free with the tiller locked.  The Genoa sheets were run across the
cabin top between the inside shrouds and mast so the headsail was pulled
tight to almost 100%.

I'm certainly no expert but to get the Genoa tight enough for good pointing
it seems like you need to run the sheets as close to the inside as possible. 
I frequently run them between the inside and outside shrouds across the deck
and am guessing that I'm still not hitting 50 degrees into the wind.  Having
the board down only helps until your sails start luffing.

I'd love to hear some other opinions on this.  It wouldn't be the first time
I've been wrong on my sailing advice. :)

Lee
1986 Rhodes22  AT EASE
Kent Island, MD





cowie wrote:
> 
> Bob:
> 
> Thanks, I was hoping someone would tell me the board is only half way down
> and that by lowering it all the way I would improve my ability to point
> higher into the wind.  Suppose I just need to learn to adjust my sails
> better.  I seem to only be able to come to within about 50-60 degrees of
> the apparent wind when beating.  Enclosed is a trip I recorded last year
> on my iphone and then imported to cad in order to do a crude set of
> measurements.  The average angle off the wind for the trip is about 54
> degrees.  According to Wikipedia, see page two of the enclosed pdf file,
> that’s about average for a shallow draft boat.  At least it's better than
> 90 degrees for a square rigger; otherwise we would never get anywhere.
> 
>  http://old.nabble.com/file/p27828783/trip_01.pdf trip_01.pdf 
> 
> 
> Bob Keller wrote:
>> 
>> 
>> Looks to me as if it is all the way down.
>> 
>> BK
>>  
>>> Date: Mon, 8 Mar 2010 05:30:26 -0800
>>> From: ccowie at cowieassociates.com
>>> To: rhodes22-list at rhodes22.org
>>> Subject: [Rhodes22-list] Diamond Board Depth
>>> 
>>> 
>>> I took advantage of the warm weather this weekend and got my boat ready
>>> for
>>> the spring launch. With my boat up on jacks I was able to lower the
>>> diamond
>>> board all the way and took some measurements. I measure 24" from the
>>> keel
>>> to the bottom of diamond board and also measure 4-3" to 4'-6" from the
>>> water
>>> line to the bottom of the diamond board. My question is this: is my
>>> diamond board all the way down at 24"? I think it is as this seems to
>>> match photos on the GB web site but just want to make sure. The older
>>> style
>>> center board seems to be deeper? Also if the water line to bottom of
>>> diamond board is 4'-3" less 24" when the board is up then the draft is
>>> about
>>> 2'-3" not 20" noted on the GB site? Does the advertised 20" asume a
>>> slight
>>> heel? Enclosed are some images for reference.
>>> 
>>> http://old.nabble.com/file/p27819957/illustration_02.jpg
>>> illustration_02.jpg 
>>> 
>>> Cowie 
>>> Opus 2009
>>> -- 
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> 

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