[MHml] Slack suckers.

[Clifford Bradford]

One easy solution (as this is a problem for a lot of boats w/o backstays 
is to fraculate the rig. When you ease the main out there's no main 
sheet tension to tension the forestay so the rig flops around a lot 
sometimes. Me and crew who normally sail on a J80 which has a backstay 
noticed this when we were sailing downwind on an Ultimate 20 (no 
backstay). to fraculate that rig (when sailing downwind with the chute 
up) after furling the jib you cleat the furling line so the jib can't 
roll out and then you tension the jib sheets. This puts tension on the 
shrouds and the rig doesn't pump it also has the beneficial effect of 
raking the mast forward which lets you sail deep and fast. Seems like 
this should help on an F-boat as well as I wouldn't think you'd want to 
sail down wind with a tight mainsheet.

Cliff

Dan Frenette wrote:
> If I understand you the massive shackle used on my original rig is still 
> there. I tried going without the adjusters as the F31s and F28s do.
>
> The problem is even with a rotating rig with dimensions close to the F28 
> rig I had a lot of slack in the rig when I let the main sheet out. This 
> gives a lot of unnecessary mast movement. So I put the capshourd 
> adjusters back on 8:1 and all. This lets me put the mast where I want it 
> on a reach or run (well we do cruise once in a while). In light air this 
> was never in a problem. In >35knots you really don't want to balance it 
> with the main when you can put it where you want and forget about it. 
> Then the main trims the main not the main/mast/jib/fore-aft trim...
>
> Dan Frenette
>
> Dave Howorth wrote:
>   
>> 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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