Based on the US Navy plans, I calculated the widths of the fore, main, and mizzen channels scaled to my model, because the widths of these channels are not specified in the MS kit plans.
These plans showed that all three channels have different widths. Accordingly, the fore channel is 16 mm wide, which is significantly wider than the main and mizzen channels. I don’t know the reason for this, but that’s how it is. I calculated the main channel to be 12 mm and the mizzen channel to be 11.2 mm. These measurements do not include the strip that will cover the chain plate slots. I cut the channels from 2.1 mm thick basswood sheet and temporarily attached them in place with pins. After marking the positions of the slots where the chain plates will be attached on the channels, I will remove the channels because I will be cutting those slots.
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