That looks very similar to what I heard referred to as a "Philly" (as in Philadelphia) Rod. I never saw the targets for one though.

And we have what is likely a winner!Thank you, I hadn't looked that far to realize one could rent Autocad from Autodesk. I will look further to find t...

Besides for much of the damage already being done (in my case), the emotional stress was almost unbearable though 🙂

I found a survey chariot for you all.... might need a bit of work though.

I know I will be corrected if (when) wrong, but here goes..... I figured the dead-reckoning feature would not be connected to any of the cars' output ...

That sounds similar to the "dead reckoning" my car GPS units have. When I enter a tunnel, last speed is used to project progress through the tunnel. I...

Is it me or is there an echo around here?:D