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Graham Bantocks New Design "Zig Zag"
Posted: 19 Jun 2006, 18:35
by JBkiff
Hi I have just finished building a Zig Zag. Has anyone else built one?
I am finding that it tends to sail down by the head in most winds (even Up Wind) and in a blow does a very good Submarine impresion Down Wind much more pronounced than my "Triple Crown".
Any suggstions
John Kiff
Posted: 20 Jun 2006, 11:18
by fernando coelho
Hi John,
I have built a Zig-Zag and found it´s handling very good. The first time that I sailed it was in top of rig 1 conditions and I found that the nosediving was very minimal and when it did nosedive it recovered very quickly. Upwind it was very stable.
Posted: 20 Jun 2006, 15:14
by Olivier Cohen
John, maybe should you check your bulb cant. Put the nose up of 2° min.
Zig Zag
Posted: 20 Jun 2006, 16:41
by JBkiff
Hi
Thanks for the interest.
I do have about 1.5/2 % nose up on the ballast the fin is wood to the designed shape it has a cord of 6%.
My boat is about 150grm over weight so I will check if the hull without ballast is down by the head.
The photo looks very good a lot of work in the finishing detail.
I will try to find out how to post some photos. Of my boat
Regards
John
Posted: 20 Jun 2006, 22:17
by fernando coelho
John,
Try using
http://imageshack.us/ then copy the link provided and input the "img" button followed by the link, followed by the "*img".
This should work.
Fernando
Zig Zag
Posted: 22 Jun 2006, 15:14
by JBkiff
Hi Fernando.
Thanks for the photo tip I will try later.
Regarding Zig Zag On wednesday the wind was up and we all had to use No 2 rig.
Still some head down problems but part way thro: I changed to my Triple Crown Fin.
Which is a Dave Creed Fin fitted with an Anders Walllin 350mm long Bulb all up weight 2495grm which I cast .
With my fin box configeration this put the Ballast CoG 13mm aft of the designed position.
The boat trim was much better as was the performance.
John