Forestay/Jib adjustment

[Josh Jones]

Thanks for the insights, Steve, that all makes sense to me.

[Brian Mikiten]

Steve - As I initiated the thread, I have additional questions. I'll go measure the mast to transom distance soon but how much adjustment does your forestay design provide and how did you determine those numbers? Also, as a sail maker, can you address the stretch on a typical jib if it is kept furled and on the boat over time? THX

[Steve Shaw]

When I designed the adjustable headstay assembly, I used the max back (34' 9") as my 7/8 point.  From there, we were able to pull it forward roughly 2.75", I think.  A lot depended on the tools we were using and wherever the rig started at (ie. pigtail length and length between swivel and  halyard block). Most riggers use a 2/3 rule for making wire lengths with adjustable turnbuckles.
As for jibs remaining furled over time, I don't recommend it because it can lead to a permanent curl in the patches and along the leech.  All things that will make you cringe when trying to sail in light air.  Not to mention that having a jibsock on there flapping in the wind and vibrating the rig will only lead to excessive mast/rigging wear.

[John Gallalee]

I need to replace the upper block/hook and becket on my jib-halyard tensioner. What are people using these days? Thanks.

[Steve Shaw]

We have used anything from a long U shackle to a small Wichard snaphook on the end of the Harken micro block.  Some have a small S hook, but I feel more comfortable knowing it can't shake loose.  Smaller is better, but at least the Ullman jibs have a generously sized flap to cover everything cleanly.

[John Gallalee]

Thanks, Steve

[Mark Allen]

Adjusting the headstay was common in the mountain west boats 20 years ago. I know one boat hat 2 pigtails (the small section above the top swival of the furler) one shorter for high wind and one standard for max rake measurement. The thought use was the same wind speeds as Steve describes but this was before adjustable forestays were allowed (not sure when that changed). I know most boats set up for max rake as measured in the rules and depower using the traditional controls. In known high wind locations go with a lower rake and put in a stiffer top batten in the main.