By the time this first layer had been applied we were about to head off-shore for a wee holiday. Because the cooler months of the year would be upon us by the time we returned, I decided to abandon the fibre-glassing until the warmer weather of spring time. There was, after all, plenty of other work to be getting on with including one of my planned alterations to the design - the addition of a foam insulation layer inside the whole boat.
This was achieved by lining the hull with 50 mm foam blocks, glued in with epoxy (I had previously done trials to confirm the strength of this type of glued joint - ie wood to polystyrene). On top of the foam was glued 4 mm plywood sheets. My calculations suggest that this will increase the weight of the hull by about 168 kg.
The finished lining looks great. Hopefully this will increase thermal and sound insulation as well as stiffening the hull to some extent. I have calculated its buoyancy value after the deduction of material weights to be 1.375 tonnes. I also plan to add buoyancy to other 'hard to get at' corners (not always using foam) with the aim of having enough buoyancy to float a completely swamped yacht.
This proved to be quite a lengthy process - in fact it was much harder than putting the actual skin on the outside. The accuracy needed was much harder to achieve in the restricted spaces between the frames.
Other work completed during the winter was finishing the anchor locker and working on the sugar-scoop stern.
I have also been attending to engineering projects such as the steering system and quadrant as well as the very substantial rudder stock. This is a 75mm 2205 stainless steel solid rod. It will have s/s tangs welded to it to take the wooden rudder.
So I still have the fibre-glassing to do. And it's a bigger job than anticipated because I will have to sand in between layers. Never mind, the summer should bring the next exciting part - turning the hull over!
By the way, if anyone out there has any questions, comments or suggestions please feel free to contact us or post a comment below.
Hi Howard. Thanks for the tour of the build over the weekend. It's looking great. Don't forget to let me know if I can be of help with anything. There are bound to be jobs where a second set of hands would be useful and I have a degree of flexibility with my work, so if you need me for an hour or three sometimes, don't hesitate to ask.
ReplyDeleteCheers
Nigel.
Hi mate. Glad you enjoyed the tour of the build. I'm sure a second pair of hands would definitely be useful so will give you a holla. And don't forget you're more than welcome just to come back re-examine the handy work whenever you fancy.
DeleteCheers
H