Daily Archives: May 20, 2018

Building a Gozabune (Kobaya) from Paris Plans – Part 3

I decided to take the day and update most of my documentation, so here’s the current Japanese traditional boat project I’m working on. I have another project with some slow research and decision making, but this is one that I basically have all the information on, since it is based on a pretty complete set of drawings.

This entry brings the blog up to date with the project’s progress.

Wasen Mokei 和船模型

If you look at the Paris drawings, you will see that there are seven pairs of main beams across the hull, not including the otoko, or great beam, at the stern. In each pair, there is one beam above and one below. The lower beam runs between hull planks. The upper beam goes through the hull planks and supports the rail assembly, which supports the yokes for the sculling oars.

Below, you can see a general cross-section of the hull. There are actually three beams running the width of the hull. Since I already have the internal framework, I don’t need the lowest most beam, so I’m calling the one just under the deck the Lower Beam.

There are also several short longitudinal beams show in cross-section below, but I’ll be dealing with these later when I begin dealing with the deck.

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Building the Urayasu Bekabune Model – Final

Here’s the last entry of my Japanese seaweed harvesting boat, the Urayasu Bekabune. This 1/10-scale model is based on the work of boatbuilder Douglas Brooks in his second apprenticeship.

It was the first scratch built Japanese boat I started, but is the third one completed. The others being the Hozugawa Ayubune fishing boat and the Gifu Tabune rice field boat.

Wasen Mokei 和船模型

At the bow was the first challenge of cutting a small square hole for the small beam at the bow. I made sure my chisel was good and sharp and lightly cut the shape, little by little. Too much pressure can chip or split the wood, particularly on the back side of the cut, so this took a lot of care.

With the first hole cut to size, the alignment of the opposite hole was aided by running the beam into place to see where it lined up. It was then cut in the same manner.

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