We are now cocooned in our own specially constructed plastic tent within the workshop so that we don’t spread cedar dust all over everyone else (it’s nasty stuff being one of the more carcinogenic wood dusts – we have to wear proper filter masks when sanding). The tent includes a closing doorway designed by Wilbur – the boy’s a genius!
It’s been hard physical work this week, including planing off the planks along the backbone of the boat (see the picture below). Most physical has been the sanding using plywood long boards in the 80’s disco motion again – this is much better for you than any gym exercise!
We also had to re-drill some of the rudder tube hole where it had been covered by planks. Here’s Wilbur at the ready with the necessary hardware!
Now it looks like this. You’ll see we’ve finished off where the planks meet at the stern – this meant routing out a channel and putting in an insert of sapele. We also had to add some extra wood on the stern as you can just see in the picture because for some reason we had a bit of a dip here in the planking.
Next stage is putting on the glass sheathing. Here is the first layer cut out and laid dry on the boat. Lovely and shiny! Sarah and I will be in tomorrow to finish this – it will need two layers of 300g biaxial glass plus a layer of peel ply. The latter gives a good finish and avoids amine blush which is a waxy deposit created by the epoxy drying.
On Monday a team of about 6 of us will apply a layer of high build primer all over the boat followed by the glass (while the primer is still wet), then wet it all out with epoxy. Then we’ll put the second layer of glass on while the first layer is still tacky.
This week I’ll give a quick update on the other boats. Adrian is building a Beer fishing boat which is clinker style and about 19 foot long. Beer is a fishing village on the south Devon coast not far from Lyme Regis. It will have a small cabin and a diesel engine. As you can see you build clinker boats the right way up.
He’s built the backbone and put on the garboards (the planks nearest the keel) plus another 3 or so planks on either side.
Regina’s boat is also clinker built and is a small sailing dinghy designed by Iain Oughtred. She has the garboards on, and will now start putting on the rest of the planks. This is an eco build using only locally sourced wood and environmentally friendly materials as much as possible.
Max is building an international canoe using a second hand carbon fibre hull which he is repairing. This will have a sail and a single seat and is a racing class boat. The picture below shows the hull. He is working on the various parts of the boat, like the seat (which you can just see behind the hull) in the GRP room which is in a separate part of the academy buildings.
Finally, Bob & Dan are building a cat boat which is an American design, used in shallow waters such as lagoons. It’s about 21 foot long and carries only one (huge) sail. It has a very curvy shape and a flat bottom. The topsides of the boat curve inward and this is called tumblehome. The construction method is cold moulded and involves gluing 4 layers of laminates on top of each other at diagonals to each other using temporary battens to create the required shape.
That’s it for this week.