[MHml] Slack suckers.

Dave Howorth Dave.Howorth at acm.org
Wed Oct 18 06:54:17 EST 2006


On Tue, 2006-10-17 at 10:47 +1000, Paul Nudd wrote:
> The Farrier tris use a multi part tackle (manually adjusted). They 
> terminate the shroud a few feet above the chainplate with a toggle and 
> have a short shroud extension to cover the distance to the chainplate. 
> This eliminates Roy's 'kink' in the shroud which I have seen cause 
> shroud failure and loss of rig. The tackle attaches to the toggle and 
> runs back in the case of the farriers but forward would be just as good.
> I have been meaning to do this for my shrouds but it is not urgent as my 
> mast does not rotate so I don't have a lot of slack, compared to a 
> rotater. I do have a lot of slack compared to a monohull.
> When I do it I will use a similar system to Roy's but with the Farrier 
> style toggle to prevent 'kinking'.
> PN

The tackle on the earlier Farrier's (e.g. F-27) is firstly to allow the
shroud to be loosened enough to fold the boat. The geometry causes the
shroud length to increase in the early stages of folding. The F-28 used
a 'highfield lever' instead. The tackle also allows adjustment of shroud
tension underway according to conditions. They are left slack on the
mooring and progressively tensioned as the wind gets up.

I'm not sure F-boats with rotating masts have them though, since they
don't have the same need to keep the mast firmly in its place. The
junction in the shroud is certainly a useful place for a change of
angle, though.

Cheers, Dave



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