Tiki 21 Junk rig, Leeway, tabernacles etc - Wharram Builders and Friends2024-03-29T06:08:19Zhttp://wharrambuilders.ning.com/forum/topics/tiki-21-junk-rig-leeway?commentId=2195841%3AComment%3A13597&feed=yes&xn_auth=noHi Paul
Welcome here and tha…tag:wharrambuilders.ning.com,2010-04-05:2195841:Comment:135972010-04-05T20:45:20.000ZBertrand FERCOThttp://wharrambuilders.ning.com/profile/BertrandFERCOT
Hi Paul<br />
<br />
Welcome here and thank you to share your rig experiments.<br />
<br />
I think the problem with the Tiki rig is to well control the curve of the main sail. When closing the wind you harden sheets and the sail become more flat and so less powerful and very often due to the too much twist of the sail the bottom is in the boat axis and I even saw on Tikis the bottom sail with a few angle toward the windward!!! In this conditions the global sail force produces a very high leeway force and a very poor…
Hi Paul<br />
<br />
Welcome here and thank you to share your rig experiments.<br />
<br />
I think the problem with the Tiki rig is to well control the curve of the main sail. When closing the wind you harden sheets and the sail become more flat and so less powerful and very often due to the too much twist of the sail the bottom is in the boat axis and I even saw on Tikis the bottom sail with a few angle toward the windward!!! In this conditions the global sail force produces a very high leeway force and a very poor driving force. I try to explain that in an article on my own page : "About Sails" (Impossible to create here a link with it !!!)<br />
<br />
I think the solution as on Peace4 to have booms is a good way to improve it, but it seems always difficult to well control the sail twist.<br />
I think shrouds limit the efficacy of the junk rig and especially its ability to be reefed at any points of sail._I can't find again the link posted somewhere here of a Tiki38 with 2 masts put on the main beam on each hull and maintained only with brackets fixed on the beam and the hulls!!!<br />
Perhaps it could be a way on your Tiki21 to hold a free mast centered on the boat axis. But for bigger boats, I have more confidence with a mast implanted in each hull or with a tabernacle in each hull to up and down more easily your mast(s)<br />
<br />
Regards<br />
Bertrand Paul,
Rory McDougall is the…tag:wharrambuilders.ning.com,2010-04-05:2195841:Comment:135912010-04-05T16:16:17.000Zkim whitmyrehttp://wharrambuilders.ning.com/profile/kimwhitmyre
Paul,<br />
<br />
Rory McDougall is the man when it comes to the Tiki 21: <a href="http://www.roryandcookie.com/" target="_blank">http://www.roryandcookie.com/</a>.<br />
There are quite a few posts over on the Wharram board by Rory. He is currently busy in England, having shipped Cookie there, getting ready for the 2010 Jester Challenge:Plymouth UK to Newport, RI, USA , starting in May. Unfortunately, that means he has his hands full, and is not posting to the board currently.<br />
<br />
Having a junk rig is a whole…
Paul,<br />
<br />
Rory McDougall is the man when it comes to the Tiki 21: <a href="http://www.roryandcookie.com/" target="_blank">http://www.roryandcookie.com/</a>.<br />
There are quite a few posts over on the Wharram board by Rory. He is currently busy in England, having shipped Cookie there, getting ready for the 2010 Jester Challenge:Plymouth UK to Newport, RI, USA , starting in May. Unfortunately, that means he has his hands full, and is not posting to the board currently.<br />
<br />
Having a junk rig is a whole other issue though; perhaps Bertrand will have something to say about it? For example, here is a clip from a post by Rory to another tiki 21 sailor who was asking about leeway going to windward:<br />
<br />
"As far as my Tiki 21, I have a jib just bigger than a working jib size - it overlaps mast by about 1 foot. Therefore I can take the lazy sheet and tighten it from the windward side and it pulls the jib clew closer to centerline like a barberhauler. If you have a bigger overlapping jib, then maybe a handy sized block and tackle with 2 hooks on the ends can be used to hook into jib clew and pull it to windward when you need to???"<br />
<br />
So he is closing the slot between jib and main here; can you do that with the junk rig and see what happens?