Greg, I got my information here:
http://www.thedieselshop.us/Data%20EMD%20GP9.HTML http://www.thedieselshop.us/Data%20EMD%20GP35.HTML It looks like your measurements compare to the center bolster measurement on this website. I'll check my ICG locomotive diagram books as I'm all but positive they'll have the measurement right. In any case, there is a difference and it is noticeable. Especially if you pay attention to the distance between the trucks and the pilots. It was also pointed out that I was incorrect on the truck axle centers. It's the EMD trucks that are too big by 4" rather than the AAR Type B trucks being too small by 4". I buy into the notion that we build caricatures of railroads moreso than exact scale models of railroads. Once one gets over the fact that they can't do everything to exact scale, it becomes a matter of degrees as to how much caricaturization you'll accept. For me, it has to look right to my eye. I won't stress over 6", but 12" or more (in any scale, I've found) will require some neat visual tricks to get it to "look right". Best Regards, Rhett Graves --- In [email protected], "Greg" <gelems@...> wrote: > > Rhett, > > A minor correction to some truck centers if I may. The prototype GP9 had 31' > centers and the GP35 had 32' centers. I checked two sources for the > prototype and they both matched on the truck centers. Drawings from RMC tend > to have errors but the drawings in Mainline Modeler are accurate and those > are the references I was checking. So I measured my AM GP9 and it comes out > to 31'9". It appears that the AM GP9 has a centering of 9" too long and AM > GP35 is only 3" too close. > > But to settle this, I can measure actual GP9's and a GP30 to see what exactly > they are. The GP30 and GP35 have the same truck center according to the > drawings and all the info I've accumulated over the last 40 years. > > Greg Elems > Reno, NV > > --- In [email protected], "rhettgraves" <rcandamoonpie@> wrote: > > > > > > GP35 - Built on the GP9 frame. A GP9 was 40' between the truck >centers > > while the GP35 was 43'. They were the same overall length, so >the GP35 > > shell is good. The trucks are just too close together. > > > > > > Regard, > > Rhett Graves > > Huntsville, AL > > > > > ------------------------------------ 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/
