Splining for big hulls

[watchkeeper]

Hi Guys

Anyone had experience with splining carvel planked hulls on bigger yachts (82ft) as preping for glass sheathing.

We got a local yard that does good quality work on 30ft hulls but I'm not sure about the bigger yacht.

80ft hulls planks are average 150mm x 60mm oak with 70m coach bolts into 200m sq sawn frames, full length keel, below shape has fine entry and beamy stern.

My concern as I told the client a big hull will move in varying sea states possibly delaminating or springing a spline.

Any thoughts would be welcome

[balsaboatmodels]

Hey there;

I'm no expert but generally recall reading somewhere in Wooden Boat magazine and probably as well in The New Cold Molded Boat Building by Reuel B. Parker that glassing a hull that size and type is a really bad idea on account of exactly that delamination as its hull flexes and the wood swells and shrinks from variable moisture content - that adds up to a lot of motion over the life of the boat.

Obviously my experience is with rather smaller boats than that, so do research well beyond this post.