The transom or stern-back is made very strong as this has to take the lower rudder fitting with such a long rudder when put hard over the force is extreme hence the long tiller for crew to handle the load . This consists of 3/4 inch larch boards on the horizontal then a 3/4 inch larch board upright with copper clenching on every cross joint, the hull to planking has a 2 inch oak frame cut to shape this is called the horseshoe because of its shape, the lower section is about 1 inch wide oak with the sides reducing to 6 inch at the top.
When fitting the boards they must be fit from the inside due to the angle of the hull planking when fitting the base section of the horseshoe the top edge must be cut with a lot of bevel, due to the angle of transom if it was cut square to the hull this would cause a water trap and cause rot to happen on the long term again paint back before final fit, being at the waterline, this is also bedded in with a white lead paste. Put plenty on to ensure a water tight fit better to much than not enough you can clean up the excess and put it back in pot. Don’t waste it.
Now the side wings make a good template remember its 2 inch thick so put some 2 inch blocks on first to make template for where the front fits, if you don’t do this when you remove the back bevel to fit hull the timber will be under size, yet again paint before final fit. If you have to use two pieces to make the shape make the joint over 6 inches. This will give more room for fixings.
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