Russian Typhoon Submarine

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Part 1d - Bow planes and associated hardware (continued)


My original servo rod with two (2) clevis´ (one at either end) did not work. The problem was in the linear motion of the rod itself. When the servo would travel from neutral to completely forward (or completely aft), the servo rod would bind in the bearing/seal (BHS).

To solve this problem, I had to design a mechanism to ensure linear rod movement. I decided to use a 3/64" brass rod. It was flexible enough to bend but strong enough to withstand the pressure of the servo/rod movement. The two brass rods (3/64" and 1/8") were soldered together on the ends. The smaller rod was then bent to shape and attached to the servo horn itself.

Now, when the rod travels forward/aft, the smaller rod bends inward, but the 1/8" rod remains straight. No more binding in the BHS seal.
Another modification to the original servo rod was just outside the WTC. Here, you can see that I´ve manufactured and installed a coupler instead of having one continuous rod. This enables me to adjust not only the length of the rod, but also the sideways travel as well. It also provides for easy removal of the battery, the WTC, the forward ballast tank or even the missile launching mechanism if necessary!

The coupler was made from a piece of brass sheet and two (2) 1/8" Dura Collars. The collars were first soldered to the bent brass sheet. Next, holes were drilled through the brass sheet matching the holes in the collars (1/8".)


The forward end of the servo rod is unchanged. It is simply a clevis soldered to the end of the rod itself. I thought about making this a threaded clevis, but the aforementioned coupler eliminates the need for any adjustment here!

Next Step - Part 2 - Stern Planes and associated hardware

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Last Updated Saturday, May 31, 2003 4:40:18 AM