Nautical Research Journal 73
5. Solid bread-and-butter hull.
the main deck to the keel. T is is needed so that the hull can be sanded evenly according to the shape of the hull.
Advantages of this technique include, among others, that it is beginner friendly, creates accuracy of hull shape, and forms an excellent platform for deck furniture, rigging and historical accuracy.
Disadvantages include that it is not the best technique for larger models due to the weight of the hull and it is not possible to display the internal structure of the ship. T is, however, should not be a big issue as it is extremely diffi cult to show the internal structure of small models.
Tools needed do not have to be expensive. T e basic tools are a miniature hand planer to remove most of
of the model. T e decision on which one to use depends on the complexity of the hull. For example: a fl at-bottomed boat will be easier to build using the horizontal technique whereas a speed boat would be better built with the vertical technique because its hull is rather complicated.
Tools needed for this technique are the same as for the solid hull construction.
Plank-on-bulkhead (POB) construction: this uses a longitudinal central keel piece that defi nes the shape of the hull from bow to stern with solid bulkheads at right angles to it whose shape defi nes the form of the hull. T ese bulkheads can easily be derived by tracing them off the body plan. When mounted on the keel piece they become the base for installing the hull planks. (Figure 6)
the unneeded stock off reasonably quickly. An
electric fi nishing sander is very useful. T e sanding can be done by hand, depending on how patient you are. Again, you can go totally overboard with a CNC machine and anything in between.
Bread-and-butter construction; the ‘bread’ is the material layers and the ‘butter’ is the glue that holds them together. (Figure 5) T e layers need to be along either the waterlines or the vertical planes
POB technique can be used in place of the solid hull and bread-and-butter techniques to build a larger model to save weight. T e bulkheads can be thicker than the frames of the original ship for stability. T is makes it easier to sand to replicate the form of the ship.
T e main disadvantage, depending on what you are aiming for, is that the modeler is limited to the
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