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Reply to "TMCC GP9 conversion - AC Pullmor to DC can w/ERR Cruise Commander"

@Mike0289 posted:

Can't agree more. I love the sound on these locos and it would be fun to run them slow and smooth like my newer Legacy/LC2.0 locos. They were ok pullers lashed up with the Pullmor motors, just couldn't run very slow or smooth.

Is it reasonable to expect the pulling power to be about the same after a conversion to DC can motors?

I would think so. I am confident that they would do the same work as the Pullmors, but run smoother due to the cruise control.

To drill down a bit further: a lot of Pullmor equipment was hamstrung by poor (zoom-zoom 200 mph) gearing, and the AC motor started off with 2 strikes against it. A 1-700E scale Hudson with Pullmor will run smoothly at reasonable speeds because it was geared more like a model than a toy. As conjecture, I think that your GP's may be geared "higher" (more toy-like) than current locos, so their creepy-ness may not be quite up to current levels. It will still be good. Someone here will know about the ratios for sure. I do not.

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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