One point to note is that Kato's factory cab roof detail is as the locos were delivered. The photo above shows the prototype in as-delivered condition in November, 2012. However, after this time PTC antennas were added to the cab roof, changing the appearance greatly:
The photo above is from 2014, when this installation was pretty much complete. A loco with the as-delivered cab roof shouldn't have the 2022 "small flag" scheme. I'll have to see what kind of N scale PTC antenna I can find.Model Railroad Miscellany
Sunday, March 22, 2026
New Kato N UP ES44AC In Union Pacific "Small Flag" Scheme
Sunday, March 15, 2026
Norfolk Southern Retires Its Last SD70ACus
Which brings me to the next issue: there's no longer a reliable way to get this kind of locomotive news. In the 1970s and 1980s, there was Extra 2200 South, but according to AI,
Extra 2200 South, the renowned locomotive news magazine, remains technically in business but has faced significant publication delays as it transitions from a print-focused model to a digital one.The problem with online forums is that they aren't edited, and they're often dominated by young kids or emotionally immature adults, and that includes Trainorders.com. Meanwhile, remaining print venues have the problem that they aren't well indexed and aren't included in online searches. The cost of converting decades of print information to digitally indexed formats is prohibitive, as appears to be the case with Extra 2200 South.Owner Doug Cummings reported in August 2025 that the magazine is "alive and well" but has been delayed due to the complex process of switching to a digital edition. This involved a lengthy legal battle to separate the publication from its former web host, which was only resolved in mid-2025.
. . . Founded in 1961 by Jerry Pinkepank, the magazine became a vital resource for railfans, specializing in detailed locomotive rosters and news. Much of its original news function has since been superseded by real-time internet forums and sites like Trainorders.com.
On the other hand, if I'm forced to use AI, I might as well make lemonade out of lemons. I asked Chrome AI mode, "Can you give the history of the SD70ACu locomotive?" It answered,
The SD70ACu is a remanufactured diesel-electric locomotive created by rebuilding older EMD SD90MAC units. The program was designed to modernize the aging SD90MAC fleet by replacing unreliable Siemens electrical components with updated Mitsubishi technology and installing a more crash-resistant cab.However, this answer didn't mention the SD70ACus NS sold to Progress Rail, which sold them on to Ferromex. I asked about this, and it replied,The SD70ACu was born out of a need to extend the life of "SD9043MAC" cores—locomotives originally built in the mid-1990s as a lower-horsepower version of the SD90MAC.
NS launched the first major rebuilding effort in September 2015 at its Juniata Shops in Altoona, Pennsylvania. They acquired 100 second-hand SD90MACs from Union Pacific via Progress Rail and another 10 through a trade with CIT Group.
In 2018, CP followed suit, contracting Progress Rail to rebuild 30 of its own long-dormant SD90MACs. This order was later expanded to 60 units, utilizing CP's remaining stored fleet and additional cores purchased from Union Pacific.
Yes, Norfolk Southern (NS) reportedly sold approximately 30 retired SD70ACu locomotives to Ferromex (FXE) in 2024.Here's a photo of FXE 4155 that was recently posted on Facebook by a photographer who goes by Car Knocker Joe. It looks like Kato missed a good prototype.The units were not sold directly to Ferromex; instead, they were sold to Progress Rail, which then facilitated the acquisition by Ferromex. These locomotives are undergoing rebuilding at Progress Rail and Ferromex's Guadalajara shops in Mexico for future deployment on the FXE network.
Current Status: Being rebuilt and repainted into Ferromex colors (some units, like FXE-4155, have already been spotted in service).
If we dom't have X2200S, at least we have AI -- but you have to ask AI the right questions. X2200S, especially when the Dover family ran it, had editors who could anticipate the questions people had.
Sunday, March 8, 2026
1980s Brass N Scale Diesels
Here's a factory-painted Hallmark SD45u. The "shouldn't have painted so fast" paint scheme dates it perfectly:
Another SD45u, factory painted in the traditional yellow bonnet: A UP "fast forty" that I painted myself: An SP SD45E, factory paint: A check of Chrome AI mode tells me that these locos are selling for about half of their mid-1980s retail price, and that would be 2026 retail. I'd be lucky to get $100 for any of them if I were selling to a dealer. They'd be too much trouble to try to convert to DCC, although one possibility might be simply to swap out the chassis for a Kato -- but even rhen, the brass body might cause shorts against the Kato split frames.But they do look great in their display case.
Sunday, February 22, 2026
Intermountain N Norfolk Southern SD40-2
Nor, apparently, did 3224 ever get the "horsehead" scheme. Locos in the 3200 series have since been replaced by AC44C6M rebuilds from 9-44CWs.
The model has truck siderrames with two brake cylinders, which is correct for former Southern Railway units on NS. Original Norfolk and Western SD40-2s had a third brake cylinder above the center journal. However, only 11 N&W SD40-2s had high short hoods, so this Intermountain model is much more typical of NS SD40-2s, at least prior to Conrail.
The model has ESU LokSound 5 DCC and sound. Following my preference, I set acceleration-deceleration CVs 3 and 4 to 0. I also found that I needed to set CV 2, starting voltage, to 20 to get the loco to start rolling on speed step 1. Once I did this, its performance matches other DCC equipped locos from other manufacturers.
Sunday, February 15, 2026
Iconic Replicas LA Metro Bus
According to Chrome AI Mode, Iconic Replicas also offers the N scale Xcelsior XN 40 in New York MTA livery, as well as two basic generic schemes. It also offers an N scale MCI D4505 Intercity Coach in Greyhound (Newclassic scheme two-tone blue, white, and silver); Greyhound Canada (Shadow trim); FlixBus, and GO Transit.




