[Public-List] Genoa Sheet Blocks

[Jeffrey]

Jonathan,

Would you have a link to a specific picture? I looked at your photos
on Picassa and while I enjoyed them all, I didn't see one particular
photo that looks like what you are talking about.  Where is your
tuning block?

-Jeff

On Sat, Oct 3, 2009 at 11:45 AM, Laughing Gull
<laughing_gull at verizon.net> wrote:
> Ok I need to chime in. I have tried it both ways - straight from the track to the winch and through a turning block. The turning block works best. In order to get  the lead fair from the turning block to the winch, adjust the position fore or aft. The further aft you go the shallower will be the lead to the winch.
>
> If you look on my site http://mysite.verizon.net/vze2s2y6/ you can see the set up I have. I have removed the second set. I could never figure out why they were there.
>
> Ok I have used up the last quarter of a 7 year old soccer match - which is a good thing.
>
> Jonathan Adams
> Mobile: 443-538-7443
> Composed on PDA
>
> On Oct 3, 2009, at 11:02 AM, crufone at comcast.net wrote:
>
>
>
> Hi Gord,
>
>
>
> I assume that the reason Jeffs Genoa sheets were piling up on the lower part of the winch was because the Genoa turning blocks were too low on the gunwale.  By providing a turning block which was positioned higher on the gunwale as on a pedestal or a lanyard attached to the moveable car this would provide a more perpenduicular entrance to the winch for the sheet and perhaps reduce the piling up effect. One could still adjust to any sheet angle needed to properly trim the sail.  You would just do so from a higher position on the gunwale.  I assume Jeff had his problem because the winches are fixed but a 170 comes further aft than a 110 so as the clew moves aft toward the fixed winch the angle up from the gunwale turning block steepens, which would cause the sheet to pile up near the bottom of the winch. By raising the turning block a fixed height from the gunwale, the angle to the winch can be reduced or eliminated, but one can still adjust the block for
>  and aft to obtain proper sheet angle from clew to turning block.
>
>
>
> Perhaps I am really missing something here.  If so please point it out to me. I do understand that a non fixed lanyard to raise the turning block would flog badly in some conditions, but a fixed height pedestal for the block would not. I would like to be sure that I am not confused about this problem. Let me know.
>
>
>
> Michael #133
>
>
>
> Gord posted,
>
> The position of the sheet block is dictated by the position and angle
> the sail needs.  If one positioned the block solely to make the winch
> work, one would be condemned to live with a sail that would not sheet
> properly and either flog at the top or have a leach that is closed and
> stalled.
>
> G
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-- 
Jeffrey Fongemie
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