I wonder are they one and the same. Since the warranty is voided if you take a shell off I did not want to do that to find out.
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They are not the same. Odyssey II uses a flywheel sensor and ERR Cruise Commander uses motor back-EMF to sense speed.
I knew how the ERR system worked and am surprised that Lionel did not incorporate it instead of the sensor system. Now that I think of it maybe it's the K-Line upgraded cruise that they got when K-Line folded.
Just looked at the flywheel on my PRR U28c underneath the removable hatch. No sensor so it must be on the motor up front which is not accessible.
Did you ever put on the Keystone decals on your engines. I know you were concerned about removing the hand rail to get to the side of the engine. Turns out that the shell is actually in three sections and the center section pops off the frame. It just snaps in place.
I suspect they didn't want the flywheel and sensor there to get damaged. This is a typical Legacy flywheel assembly.
I did indeed put the Keystone decals on, turns out that I didn't have to remove anything to get them in place. I also learned you don't pick that one up by the shell, it is delicate. 
Originally Posted by gunrunnerjohn:
I suspect they didn't want the flywheel and sensor there to get damaged. This is a typical Legacy flywheel assembly.
I did indeed put the Keystone decals on, turns out that I didn't have to remove anything to get them in place. I also learned you don't pick that one up by the shell, it is delicate.
Just as I thought. That is the K-Line design.
While the sensor looks like the K-Line, I have to say that Odyssey II works better than any of my K-Line locomotives with cruise control.
Originally Posted by gunrunnerjohn:
While the sensor looks like the K-Line, I have to say that Odyssey II works better than any of my K-Line locomotives with cruise control.
It might work better because Lionel took their design and improved upon it with either a hardware or software upgrade. I suspect it was a software upgrade.
Not sure of the history, I just know that my Legacy stuff has the best cruise control of any of the stable.
Flywheel may look the same but that's about it. The K-Line is based on TAS Engineer On Board.
That makes sense, the K-Line seems to have behavior more like EOB than Legacy.
