Hi Andy,
>Yep...that's good info. Here's a picture of the sight. I cannot find out what the range dial on the lower left is used for. None of my aircraft manuals mention it. You have any ideas?
The picture is right from the same manual page I quoted, but the range dial is not explained there either!
I'd speculate the range dial was mechanically connected with the throttle grip and could serve as a backup for the throttle twist.
However, it's primary function probably was to display the range to the pilot: If you look closely, you see a white arrow pointing at the near side of the range dial, and I guess there was a scale on the dial's circumference. That would be the means of indicating the selected range to the pilot.
>I sent you an e-mail with a forum post attached. Did you get it?
Now that I looked for it, I got it! Request confirmed :-)
Regards,
Henning (HoHun)