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Olli Väänänen
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  • Jyväskylä
  • Finland
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Olli Väänänen's Discussions

Up and down movement of the rudders
11 Replies

The Tiki rudders are supposed to be hinged with 4 millimeter polyester string. Have you been able to tie the string in the figure-of-eight fashion so tight, that the rudders do not move up and down.…Continue

Started this discussion. Last reply by Ian R Feb 21.

On the usefullness of the mizzen staysail on Tiki31

The sail plan of Tiki 31 suggests there is a mizzen staysail (13 sqm2) for off the wind use. For the windward use a mizzen staysail of the same size as jib (8 sqm2) should be used.On the pictures…Continue

Started Sep 4, 2017

Glassing a wooden mast
1 Reply

Should I glass the wooden masts I am making for my Tiki 31? Glassing would make the mast stronger, but does glass add to chafe when using the wingsail? Also I would not want to paint the masts but…Continue

Tags: mast, wooden

Started this discussion. Last reply by Allen Bosely Sep 28, 2015.

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Latest Activity

Ian R replied to Olli Väänänen's discussion Up and down movement of the rudders
"Thanks for your info, boatsmith- My rudders work pretty well, a bit tight at the extreme tiller-over, but with no clanking as you say which is a notable plus. I think there will be significant wear on the timber parts because they are clearly closer…"
Feb 21
boatsmith replied to Olli Väänänen's discussion Up and down movement of the rudders
"Also we use 6mm line for our small boat rudder lashings"
Feb 19
boatsmith replied to Olli Väänänen's discussion Up and down movement of the rudders
"We only notch the lashings in a little bit. There is still a gap. Regarding the dyneema there are lots of varieties. Some is heat treated and prestressed. This type is the strongest and has very little creep and is the most expensive. The nolower…"
Feb 19
Ian R replied to Olli Väänänen's discussion Up and down movement of the rudders
"Correction: above I say stern and stem post, when I mean stern post and rudder stock. Sorry! I'm going to do something else now I promise...."
Feb 19
Ian R replied to Olli Väänänen's discussion Up and down movement of the rudders
"Thinking about this further, and rereading what you (boatsmith) say: if you are saying there is the thickness of the cord between the two elements, that must mean that you are not socketing the hinge back into the post and the rudder as shown in the…"
Feb 19
Ian R replied to Olli Väänänen's discussion Up and down movement of the rudders
"I have the Tiki 31 plans in front of me. They show a clearance gap of approximately 20% of the thickness of the 4mm cord between the sternpost and the rudder stock. The sketch shows that the cord crossovers are embodied in the cutouts/recesses made…"
Feb 19
boatsmith replied to Olli Väänänen's discussion Up and down movement of the rudders
"There is the thickness of the lashing rope between the rudder and the sternpost.They do not rub against each other. If your lashings are tight they will not sag appreciably, they will not clank, they won't break unexpectedly. They are also…"
Feb 18
Ian R replied to Olli Väänänen's discussion Up and down movement of the rudders
"I fitted my rudders exactly as stated in the plans, except for using dyneema. My plans show a clearance gap between the rudder stock and the sternpost, are they still like this? Clearly, if you maintain this clearance, then no matter how tight you…"
Feb 17
Maxim Jurgens replied to Olli Väänänen's discussion Up and down movement of the rudders
"We insert 7 mm dia aluminium tubes in the lashing holes in the rudders and sternposts. First you drill the holes large enough to accept the tubes , coat the inside of the holes with epoxy and when dried fix the tubes in place with sikaflex or…"
Jan 22
boatsmith replied to Olli Väänänen's discussion Up and down movement of the rudders
"we wrap the hinge line around an axe handle for leverage on each turn. Once e have a turn tight we drive a wooden wedge into the hole to hold the tension while we rig the next turn. once all turns are in we glue the rope to the holes in the rudder…"
Jan 21
Rogerio Martin replied to Olli Väänänen's discussion Up and down movement of the rudders
"I had difficulties with the tiki 30 rudder. I think by its weight it should have a guide pin under the rudder attached to the skeg, as in tiki 38. But minor Wharrams should not have this problem. Alas, my cables are not glued. I change each year."
Jan 20
Olli Väänänen posted a discussion

Up and down movement of the rudders

The Tiki rudders are supposed to be hinged with 4 millimeter polyester string. Have you been able to tie the string in the figure-of-eight fashion so tight, that the rudders do not move up and down. If not, how big up-and-down -movement is permissible? I think that it is unavoidable, that the rudder touches the stern post right in the center line of the stern post, chafing the paint. I guess the stretch of the string will not be an issue, since the string is glued to each hole both in the…See More
Jan 20

Profile Information

I am:
A home builder
What boat (s) are you building or do you own?
Tiki 31
Country, City, and State?
Finland , Jyvaskyla

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