Nautical Research Journal


two liſt s are ½-inch thick, then the waterline layer 3/16-inch thick, a further ½-inch layer and fi nally the fi n and bulb keel, ¼-inch thick, placed on edge. Two holes were drilled for locator pegs through the four horizontal liſt s. (Figures 4 and 5) Without these positive locators, there is every possibility of slippage and misalignment when gluing up the hull later on.


T e liſt s were marked with their appropriate waterlines and cut to shape on the scroll saw. T ey were then temporarily assembled using rubber cement. T e fi rst shaping operation was to cut the top of the model down to the sheer at the centerline of the deck. Again, careful marking out paid dividends. T e majority of the waste was removed using a chisel aſt er making a series of vertical cuts on the scroll saw. T ese cuts can just be seen in Figure 4. Further shaping was varied out with a rasp, then fl exible sanding sticks.


Once the correct sheer was established, the round up of the deck needed to be shaped. For this, I made a specially-shaped sanding block. (Figure 6) T e radius of the round up, in this instance, as taken from the full-hull model and reduced in scale, was 15 inches. I used a wooden radius template to mark out the block before cutting it to shape. In use, one hand holds the block against the inner face of the model while the other hand moves the block along, simultaneously applying pressure. (Figure 7) T is method worked extremely well, although it was a slow process. However, I did remove the bulk of the waste fi rst using a chisel. 60-grit sandpaper, applied to the block using rubber cement, was used to complete the round up. T e coarse paper was replaced with fi ner grades for fi nishing the deck surface.


Next, a block was screwed to the back of the model so that it could be held in a vise. (Figure 8) T e extension supported the fi n, to which it was rubber cemented. Shaping the hull was carried out in the usual way. First a well-sharpened chisel and gouges were used to remove the bulk of waste. (Figure 9) T e hull was further refi ned using a #12 rasp and sandpaper in various grades. T e shape was controlled by the use of templates shaped to the arbitrary station lines at intervals along the hull and, of course, the liſt s. (Figure 10)


Once the hull was shaped, the holding block was removed. T e next step was to make and attach the toe rail. T is rail varies in height from just under ¼-inch in height at the bow down to 1/32-inch at the stern. It is consistently 1/8-inch wide—4 inches


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