In my last post, I described Oliver Lang’s unique modifications to HMS Terror’s stern to accommodate the screw propeller. A primary component of this modification was a massive 3.5 inch thick “iron staple knee”, which securely bound the keel, original sternpost, and rudderpost together.
To model this part, I will use brass, blackened to simulate iron. I originally attempted to bend and hammer a 1.85 mm thick piece of brass into the correct shape, but try as I might, I could not create the appropriate angles accurately and only produced a mangled mess. Finally, I resigned myself to the fact that I would need to cut three separate pieces and then silver solder them together. I had never attempted this before, but I found a great deal of information on Model Ship World, and decided to give it a try.
|Brass stock cut to match the dimensions of the three sides of the knee.|
|Preparing to drill the holes for the bolts.|
|A rough jig necessary to hold the pieces in place while soldering.|
|The drilled pieces.|
|My new pen torch and other soldering equipment.|
|Clamping the pieces to the jig. It was a tricky task not to burn the jig, but thankfully the joints were small and the brass heated rapidly.|
|The knee after soldering. The joints are much stronger than I hoped they would be.|
|The final part filed to shape and compared to the plans.|
|An alternate view of the finished part.|
|The knee dry-fitted to the stern piece.|