Russian Typhoon Submarine

Part 4 - Rudders and associated hardware

	After drawing the rudders onto a sheet of paper, I then cut out the templates and transferred them onto the Celtec. I used the band saw to cut them out, and a band sander to contour the edges. You can see the rough surfaces here before fine sanding and installation.
The permanent part of the top rudder (part 1) will be bolted to the hull using two (2) 8/32 X 1½" studs and nuts. Here, one bolt has been installed, and I will use my Dremel® tool again to cut the head off. The stud will then be inserted into the top of the hull and a nut/washer will be used to tighten. The second bolt will be installed in the same manner. You can also see that I´ve shaped the concave groove into the trailing edge to accommodate the leading edge of the movable part of the rudder (part 2). This was also done with my Dremel® tool and a cone shaped grinder bit.
	Before installation, (part 2) of the top rudder gets a 1/8" brass rod inserted 3" into the bottom. It was secured in place using CA glue which made for a very tight and secure fit. The rod will extend down into the hull, through a 5/32" piece of brass tubing, to accommodate the control linkage clevis assembly. Next, the top edge received a 5/32" brass tube which extends up through (part 1) of the rudder. The hole in (part 2) for the brass tube was drilled large enough to allow free rotation.
Here, you can see both parts of the top rudder installed. You can also see I´ve attached the starboard side fin and am in the process of manufacturing the center fin. The port side fin will be installed after the center fin and stern planes have been installed.	Next Step - Part 4b - Rudders and associated hardware (continued)

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