Hi Dave, I'm already planning to hand lay all my proposed Dual and Triple Gauge track, as well as my `S' and `Sn3' sections, so was looking to save myself some effort by using cliptrack on the Sn9mm sections.
Out of curiosity, since 9mm is 22.67 `S' scale inches, why do you call it Sn20? Furthermore, I believe that I calculated HOn3 track to be something like 26.5 `S' scale inches. This puts HOn3 two and a half `S' inches out of true Sn2 and 9mm track only 1.33 inches off true Sn2, though on the other side of the equation. ALSO, while I discovered this engine and these Sn9mm trains on a mine forum, I do not intend to use the Sn9mm equipment in my mine, since it would be strange to have both 24' gauge and 36' gauge operating in the same mine, and I already have Sn3 mine equipment nearing completion (I just need to paint it). Instead, I plan to use the 9mm equipment to haul bins of sea food from a wharf, through the streets of a small town, to where it merges with my Dual Gauge, and then on to a cannery. They could also haul ice and other supplies back to departing ships. In regards to the bridge, I'd have the 9mm running down a street, but divert off the side of the street to cross a stream or small river on its own bridge, before merging back into the center of the road. I've found it easier to cut my own ties on a chopper, since I can adjust them better for switches, and then stain them once they're in place. I have a tie spacing gauge, for Standard Gauge, that a friend of mine made, and I was just going to use this for the Sn36 and Sn9mm as well. Tie spacing is the same on 3 and 2 foot gauge as it is on Standard Gauge, right? Jeff Allen. --- In [email protected], "David Heine" <davesn3@...> wrote: > > I don't think the FRA cares about a battery-powered <2' mining railroad, > that probably isn't even under its jurisdiction. I would extend some ties > (or install extended ties between the factory ones) and build a walkway off > the extension on at least one side. > > I question the use of N scale track in S scale because the ties are too > small and too close together. (No problem with N gauge, I call it Sn20 and > built a tram in it myself. I also have Sn2, using HOn3 track gauge, which > is why I call it Sn20.) If you don't want to hand lay the track, I would > use HOn30 flextrack with the ties spread further apart, which would look > better IMHO. Micro Engineering lists HOn30 (HOn2-1/2) flextrack with Code > 70 rail. On a previous layout I used HOn3 flextrack for Sn2 already and > spread the ties further apart. On my current layout I'm hand laying the > track so tie size and spacing is up to me. If you want to hand lay track, > Kappler has ties 5" X 5" X 5'(KP00Sn2) and 5" X 5" X 4' (KP00Sn18). > > Dave Heine > Easton, PA > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On Behalf Of > danconialead > Sent: Tuesday, March 19, 2013 9:45 PM > To: [email protected] > Subject: {S-Scale List} FRA standards re: bridge width > > The body of my first S9/Sn22.67 (Sn2 on 9mm/`N' scale track) critter engine > is coming together much faster than I expected and the main structure is > already assembled. > > Since I plan on using Kato 9mm track on many of the Sn2 (only) sections of > track, I stopped by the hobby shop to look at their selection of Kato track. > > Among other things, I found that the S9 locomotive, which is cables, will > not fit on an `N' scale bridge which has vertical sides, due to its width. > However, Kato makes a 9mm deck truss bridge which does not have vertical > sides, but is actually slightly narrower then the critter locomotive itself. > > Other then it's width, this bridge is well detailed and would look great > crossing a stream or small gully. > > Under FRA rules, would a railroad be permitted to operate a cables > locomotive on a bridge that's narrower then the locomotive itself? Were the > operator to fall out of his seat, there's nothing between him and the ground > under the bridge. > > Jeff Allen > > > > ------------------------------------ > > Yahoo! Groups Links > ------------------------------------ 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/
