Quote:
Originally Posted by CapnScurvy
Snakedocpl, I believe your images of the Stabilized Azimuth Line are a bit misleading. The line could be placed anywhere within the periscopes Field of View. It was independent from the Telemeter Divisions........ so it was not "centered" to the FoV. You focused the line (bringing it in sharper), placing it just ahead of the targets bow, then turned the clutch "in" to engage the synchronous motor (which would have already been plugged in) just as the targets bow touched the line. Using a stop watch, you time the passage of the target. Unlike the images, there are no graduated marks, or scale for the Stabilized Line......just a line.
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These images are my impression, because I have never look through the periscope with stabilized line. The impression based on the construction drawing of the ocular box. I marked stabilized line with red color. Of course it can be moved through the view (after decoupling from motor). The first drawing presents it after placing it at the bow of the target. On the second drawing the scope was rotated, but line stays at the same place as before (rotated by synchro-motor). That's why I wrote, that target is stationary. In reality, the target would move, and the line would be slightly shifted relative to the bow.
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Regards
Maciek