A Photo & Discussion Forum for Wharram Design Enthusiasts
I am considering how I will rebuild the lashing system for my Pahi 31.
From what I have been able to understand from looking at some pics on the web, my basic idea for the lashing system is: a length of timber the appropriate width running the length of the gunwale. This length of timber will be mounted on smaller pieces of the same timber which will sit under each beam. Above each of these smaller pieces of timber will be pieces of plywood bracing of a similar/same thickness as the timber. The pieces of plywood bracing will be a triangular shape with a flat top.
I have included some pictures, one that I found on the internet, and then some basic drawings I did representing how I intend to do my lashing system. Does this sound/look like the right idea?
Any comments/suggestions would be greatly appreciated!
Yes, it looks right.
The reason shape of the upper block is so that when you tighten the lashings (by making horizontal wraps around the vertical lashings), they will not make contact with the block.
Okay, great, thanks very much.
Yes, there are reinforcements on the interior. The lashing strake should line up with an interior stringer, and the block will have a companion 9mm interior ply reinforcement.
Levi Verwoest said:
Curious about what is on the interior in the way of reinforcement. Are the ply bracing and timber merely bolted to the hull skins? Or is there extra thicknesses of ply inside?
I have seen several Pahis and Tikis from the outside, never had the opportunity to see inside.
Slightly off subject..
A few months ago I converted my Hinemoa to lashings. I laminated two 75m X25mm planks under the deck with some packing pieces to take up the space between the underside of the deck and the deck stringers.
It has made a world of difference. The boat flexes less now. Previously you could watch the deck warping in rough water, now just the lashings flex. And there are 32 less holes in the deck, as in I have a dry bunk finally.
Has any body else converted older designs to lashings? Curious to see how it was done.