Returning to the Swordsman, today I'm working on the aft cabin – which for those that don't know this version sits inside the coamings and has a low upstand at the rear to support the roof. The upstand will be a bit higher than shown as it will be increased by the roof base planking (similar to the front cabin) and then the finish planking to match the deck.
Given that this upstand follows the curve of the transom, the camber of the deck and roof and is inclined forwards, after some thought I decided that the best way to tackle it was to produce it out of balsa block and then face it in thin birch ply. Fortunately I had a block of balsa that I bought quite some time ago – I haven't bought any recently, are supplies Ok now?
I'd started drawing up the plan and elevation of the upstand before and after checking the width between the coamings and the height required I printed them off and stuck the plan to the balsa with Pritt glue, cut chunks of balsa off with a razor saw and sanded to the line with a PermaGrit block – this face will have to be angled back later.
Then the elevation, with the roof and deck cambers, and adjusted in length to take account of the considerable curve, was stuck to the face and the deck camber produced by filing and sanding and trial fitting to the deck until a satisfactory joint was produced, which is where I've decided to leave it for today.
Chris



Edited By Chris Fellows on 02/02/2021 16:56:32