Model Railroad Blog

Setting Priorities On A Freight Car Upgrade

When I upgrade a freight car, I split the work into two groups and prioritize accordingly. The first (and most important) group consists of upgrades that contribute the most to visual impact. I start with these. They are the things you notice when you first walk into the room and view the cars from five or six feet away. The nice thing with these steps is that they are “low-hanging fruit”, very simple steps that make an enormous difference. The second group, I call “just for fun” detailing. These aren’t as noticeable, but I find them simple, fun, and relaxing to add.

Visual Impact

When working with a plain Jane car of the forties, fifties, or sixties, the one step that takes priority, the one that creates the most impact by far, is dulling the car surface and adding a super subtle “haze” to tone down the white lettering. Painting the trucks and cutting the coupler trip pins off are also major priorities, second and third in line.

As you look at this typical UP car notice:

-The flat finish

-The subtle haze. It’s typically some form of burnt umber, burnt sienna, or muddy gray, and barely noticeable. However, modeling it is a real difference maker, primarily as it relates to dialing back the intensity of the white lettering.

-The thin, dark, vertical contrast at the rivet lines.


Let’s start with the low-hanging fruit, the twenty percent effort, eighty percent impact steps. First up, the dulling ultradilute wash. If you want to delve into the hobby beyond being a casual recreationalist, and it’s a personal choice, you need to get comfortable with using an airbrush. If you don’t, you’ll be forever handcuffed, forever limited in how far you can take things. If you can use an electric toothbrush, you can use an airbrush.

The haze is applied as a very, very thin wash with an airbrush. Fill the paint cup about two-thirds full with Tamiya X-20 thinner. In this case, I’m going for a muddy gray tone (alternatives being burnt umber or burnt sienna). Dip a small paint brush handle in a bottle of Tamiya XF-84 Dark Iron (a totally disgusting and highly useful hue) to pick up a thin layer of paint and swirl it around in the thinner a bit until most of the paint you picked up is washed into the paint cup. Do this three times. With the wash now mixed in the cup, airbrush a white card to make sure the wash is barely noticeable. If it’s too thick, pour a bit out of the cup and add more thinner. Once you have the right consistency, coat the car in two or three light passes. Remember if the wash is too thin, no problem. You can bring the color up on future passes. If you make it too dark, sorry, you’re pretty much screwed. The bottom of the car, doors, and car ends are a bit darker. I made a darker wash of five drops of paint for these areas.

That’s it. This simple step will contribute a good eighty percent of the overall visual impact.

The trucks are easier. After masking off the treads, I apply several coats of Rustoleum Dark Gray Primer (rattle can). When that’s dry, give it a light puff or two with Rustoleum Earth Brown camo. Finally, I take a small, ratty brush and grind in Bragdon Enterprises’ “Weathered Brown” weathering powder.

The third and final “big ticket” step is cutting those hideous trip pins off of the couplers. They look awful, are very distracting, and serve no purpose. Although not super noticeable, I like to swap in Kadee #158 scale couplers (after cutting off the trip pin). On the Walthers Proto car in this example, it’s a very simple swap.


Good enough, let’s roll? Hit the brakes and putter?

Picking the right pace of progress is a critical part of the hobby that doesn’t get talked about enough. How fast you move will be dictated by how large your layout is, how far along you are with it, and what activities you enjoy. If your layout is medium to large, it makes sense to employ Tony Koester’s pragmatic “good enough” approach and declare the car “finished”. If your layout is smaller or almost done, going too quickly will essentially put you in the position of working yourself out of a job. In these situations, it makes sense to hit the brakes, enjoy the ride, and smell the roses. Move on to adding less noticeable details, not out of any drive to be hyper prototypical, but simply because doing so is fun.


Details

The details I’ll go over next are far less noticeable. Nonetheless, I like to sit down with a cold beer after work and putter away. For me, they are less about rivet counting and more about relaxing. All of my layouts are done, or mostly done, so I’m looking for ways to extend modeling time, not speed it up.

In no particular order, I added:

-Cut bars

-Air hoses

-A thinner brake wheel

-Painted the tack board and added dry transfer scraps to represent old waybills

-Added a few chalk mark details

These are the purchased detail parts I used. I’m not sure the actual brand is that crucial.

A) Kadee brake wheel. This is much thinner than the one on the model. B) Scale couplers. It’s crucial from an appearance standpoint that you trim the stock trip pin off. C) Cut bars D) Air hoses. Note that it’s important that you introduce a slight bend or droop to them. Many aftermarket hoses are totally straight, which is not a good look. E) Painted trucks. The stock trucks are very free rolling, which I like. Some modelers like to swap in trucks with a thinner/more prototypical tread. I may do that later.

A) I dry-brushed a medium gray on the tack boards and then rubbed some scraps of white dry transfer lettering on for the waybills.

B) Random chalk mark decals from Microscale

C) Notice in the prototype photo the contrast lines on the rivet rows. Representing them adds value. Take a razor-sharp black artist’s pencil, and using a straight edge, very, very lightly drag the pencil across the rivet heads. If you go too dark in this step its impossible to reverse.

D) The haze on these cars is subtly darker on the bottom of the cars. I made a slightly darker wash and made a few more airbrush passes to darken things up.


From time to time, it makes sense to take inventory of your situation and interests and prioritize accordingly. Larger layout or just getting started? Grab the low-hanging fruit and move on. Small layout? You need to look for things to slow you down, so don’t get done too soon. It’s not either/or. You can always do a blend that works for you. The point is to have a basic strategy, to work from a place of purposeful intent.

The Streets of LA

One of the most challenging elements of an urban layout, and one that’s important to get right, is the pavement. You’re dealing with a lot of subtle color patterns and feathered edges. The street behind the track is probably the most difficult model to build on the extension module. The sidewalks curve to the side for one thing. Not obvious in the photo is that the height of the sidewalk ramps down to zero as it gets closer to the crossing.

The street and sidewalks (including ramps) are built off the layout on my workbench from .060″ styrene. I then laminate a photo of an actual street from The Central Manufacturing District using Super77 to the styrene. I added a few dots of thick CA to prevent lift and curling in the years ahead. (To get the image, I stood on the hood of my rental car and shot downward. That didn’t gather a single side glance from the locals. They’re used to craziness in LA!)

Here’s the finished piece. I won’t mount it permanently to the layout for a while since being able to remove it gives me more flexibility while working on the surrounding areas. The image is printed on gloss paper. I then add five or six very light layers of Dullcote applied a few minutes apart. If you lay the Dullcote on too thickly, you’ll get a frosting effect.

Here’s the base image I started with if anybody wants to use it. I photoshopped it so it would fit this specific location.

LAJ 1/31/26 Update

On my laundry list of projects for the early sixties version of the LAJ layout is to add to my rolling stock roster, especially what I call “plain janes”, unpretentious cars that look like they belong. Looking at prototype photos, there were more fifty-footers than forty-footers.

The old Walthers Proto cars are really nice models with a high level of ultra-thin details. The trucks are very smooth rolling. I did some basic upgrades which included swapping in a thinner brake wheel from Kadee, adding Detail Associates cut levers, and replacing the couplers with the Kadee scale version.

When it comes to weathering some lessons learned the hard way are:

-Before you do anything, do NO HARM

-Work in light layers

-Know when to stop

All easier said than done. Going in my goal was to simply knock down the shine and tone down the white for starters. This was done with a very thin wash applied with an airbrush. I filled my airbrush cup halfway with Tamiya thinner and added a few drops of Hull Red. Test the wash strength on a white card NOT the car, again a lesson learned the hard way. A similar wash of Nato Brown was applied to the roof. A wash of Dark Iron was applied to the car ends and around the doors. After looking at the photos, my sense was it “needed something more”. It was soooo tempting to keep going. Judgement prevailed, and I decided to call it a day. I can always add more layers but you can’t undo over-weathering.

LAJ 1/25/26 Update

Along with half the country, I’m homebound due to the massive snow/sleet/ice storm. It’s a good excuse to get some modeling in. It’s been an interesting behavior mod. challenge for me of late, going from a lifetime of “mission mode” model railroad construction to learning to slow down and enjoy the ride. I have to continually remind myself that the faster I work, the sooner I’ll work myself out of projects.

This weekend, I added an extension piece to the warehouse on the base layout, replaced the backdrop mockup with the permanent piece, and upgraded the W.S. Dodge mockup. The backdrop flat consists of three photos stacked on top of each other to give more of a 3D effect.

Here’s the artwork for the door on the warehouse extension if anybody wants to use it. Doors are eighty inches tall, which scales to .92″ in HO. (80 inches equates to 10 cinder blocks as another way to scale things)

One of the members of my Facebook modeling group suggested that I swap in some new trucks from 3D Central on my new Rapido reefer. They came in Friday and are smooth rolling beauties with narrow tread. Between the excellent base quality of the Rapido unit, the new trucks, and Kadee scale couplers, the car has ended up being a real gem.

Wiring the LAJ Extension Module

When I first clipped the extension module in place, I was a little surprised that I got reliable power simply through the rail joiners connecting the module to the main layout. I left things that way for a while, but I wouldn’t call it a best practice standard. As with all turnouts, the frog is dead. That being the case, I was getting stalling when the short wheelbase switcher passed the turnout.

Time to do things correctly. I powered the frog with a Tam Valley Frog juicer and added two sets of 18-gauge feeders. Stranded vs. solid doesn’t matter. The photo above shows the location of the feeders, which I soldered to the bottom of the rail. The Walthers c70 turnouts have a tab for wiring in a power feed.

Here’s a view from the bottom showing the juicer. The module connects to the main layout bus via an XT60, 14-gauge quick-disconnect plug purchased on Amazon.