Planking the inside (ceiling) of the hold. First comes two 7x1.5 mm planks on either side of the rows of short floor planks. The instructions say these are to stay the same width throughout. The rest are the 5 x 1.5 mm planks which need to be tapered. The way I normally do this is to create a small cross-section out of scrap planks and determine how many fit in the widest part of the ship. Then measure how many fit in the smallest. The difference between these two (divided by the number of planks I'm using) is how much needs to be trimmed off the planks. It's more of an educated guess. I'm mostly concerned about keeping the plank tapering as consistent as possible.
On this model it looks I can fit 15 planks max mid-ship (the widest part):
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The spacing stays more or less consistent at the stern. This is good: I won't bother tapering that end:
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As I approach the bow the space for planks get tighter. Looks like only about 11 planks can fit here:
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I won't bore you with the math. But I calculate how much needs to be trimmed to get 15 planks to fit into the space at the bow. I like to cut/taper them all at once for uniformity sake. I'm using a tapering jig from Micro-Mark. It LOOKS like it should work. But It may be a bit before I can plank up all the walls.
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