Weren't the original AM wheels designed to be a compromise that would work on scale or tinplate trackage. I know they will, whether they're supposed to or not.
The Code 125 wheel in S was closer to scale thickness than whatever was the standard wheel in HO. Code 110 brings the thickness even closer to scale, but there comes a point where those who operate extensively may want to consider carefully what wheel thickness they use, simply in the interests of reliable operation. That being said, my LWS Alco FA-FB set, and EMD SW-1 have some sort of O fine scale wheels because the correct S scale wheels were not available. They have a more realistic profile, but the flanges are a little sharp, which makes them a little "picky" if I'm not careful with trackwork. No problem, in spite of how much my trackwork resembles Rock Island or Penn Central in their last days, SHABBONA trains do run, and stay on the track. The old Miller Code 125 RP-25 wheels are probably the most trouble free wheels I have, since they have more of a fillet to keep the flanges away from the railheads. You can debate right or wrong all day if you want, but that's the way it is. Bob Nicholson _________________________________________ --- In [email protected], Bob Werre <bob@...> wrote: > > Butch, The original powdered (steel) AM wheel sets were indeed #125, I > think it was mentioned that they would run on most anything. Remember > all the initial AM offerings came in a "scale only" version--hi-rail > versions with claws came later. I do think that when Ron started having > things made in China they might have changed to a finer wheel size. > Actually they looked identical to SHS wheels. I would volunteer to > check but my wheel sets have been mixed up considerably and they > typically don't have names stamped on them to check their heritage. > > Some of what were talking about also applies to my problem with my AM > Trainmaster that we talked about a few days back. The deeper flange of > the 125 wheel is likely to stay on the track better when it comes to the > various forces that a powered truck impose. While a typical car just > has to ride the rails, a diesel has to keep on the rail, pivot, rock, > endure twisting forces plus pull a trailing load or even worse push a > load. If you ever doubt the forces I'm talking about find an older > Overland engine like the FA or Sd-40-2's. Put the throttle to one > (laying rubber acceleration) and watch it lift itself as it digs in! > > Bob Werre > PhotoTraxx > > > > Hey John, > > > > Why don't you post that comparative photo now. I'd like to see the > > difference since I haven't committed to any specific wheels yet. I was > > surprised the other day when I put a mic on an AM 33" wheel and it > > came out to be code 125. I thought both AM and SHS used code 110 wheels. > > > > And we're always whining about something on this list but "Hey"! We're > > the "S"pecial modelers. VBG. > > > > Butch > > > > > > > > [Non-text portions of this message have been removed] > ------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/S-Scale/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/S-Scale/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
