TH&B 70 Ton Hopper #1234: Finished

This model was completed some time ago, but I was deliberating the various approaches I could take with the weathering.  I had to consider how the car was utilized while I thought about the various media that I’ve used for different effects.

I built TH&B hopper #1234 for a small pool of cars used on the WRMRC in slime service for Inco.  TH&B didn’t serve any mines on line, so they used these cars like many roads used boxcars, meaning that, stead of hauling minerals for a specific customer, they shopped around for ways to put them into service earning revenue.  Aside from hauling slime for Inco, some of the cars contributed to a pool of cars assembled by CN, TH&B, and PC.  Others were used in a variety of ways, like hauling limestone from the quarry in Dundas, or scrap steel between industries in Hamilton.  Even cars used ore service were  rotated in and out of the pool.  As a result, they didn’t weather quite the same as hoppers from a road like the Pittsburgh and Shawmut or Lehigh Valley, where the such cars were used to haul coal for the duration of their useful lifespan.

In the end, I decided to try a combination of acrylic model paint, artist oils, and chalks.  The first step in the weathering was actually in the base colour of the car.  I used Polly Scale paints, and instead of using straight black, I mixed in some Reefer White to fade the black a bit without making it look grey.  This also helps to give more depth to the details.

After the decals and flat finish were applied and cured, I brushed a rough coat of white artist oil paint on the outside and bottom of the car.  I don’t use Titanium White because I find it has a hint of blue that works nice on canvas, but isn’t so good for weathering model trains.  Once the car is covered in a thin layer of white, I use a series of four progressively softer brushes to remove the paint.  The first brush is a 1″ flat and the last brush is large and very soft fan.  This step fades the car.

After I was satisfied with the fade, I used three different mixes of light grey on different parts of the car.  In this step, I didn’t whisk quite as much of the paint away because I wanted some streaks left behind. After the grey streaks, I put a few very subtle rust patches onto the sides with Burnt Umber and Raw Umber.  For these I put tiny blobs in place with a small brush and then dissolved the blobs with mineral spirits until the edges softened up enough to look natural.

When I was satisfied with the oils, I went at the car with some Bragdon weathering chalks, mixing and blending their Dark Rail Brown, Old Tuscan, Antique Iron for the inside, and a bit of those plus their Ash colour on the outside.

I think this one is ready for the layout.


TH&B 70 Ton Hoppers Part 6 – Trucks

In his response to my previous post on this topic, Chris Mears asked about the trucks that came with the Stewart model I used for my TH&B hoppers. I’ve put together a short post in response to his question.

Because I mentioned the ill-fated attempt at using True Line trucks in my previous post, I want to expand on this first.  True Line has had their fumbles, and the masses have subsequently beaten them with suitable vigour.  I think it’s safe for us to leave that debate to the various online fora.  I’ll celebrate the fact that they’ve survived the lashings, and they continue to make a go of it.  I own a number of their models and I especially like their slab side covered hoppers.   I’m in line for a pair of their upcoming SW1200RS models, and I’m hoping for another run of their CP and CN vans and the slab sided covered hoppers.  My experience with their freight car trucks was a disappointment.  They should never have let those parts get into a package and onto store shelves.  One pack of bad trucks would be a fluke, but I bought two packages and both were unusable.  In the end, I was refunded my money, but I that’s beside the point.  It’s inconvenient for me to get to a store that has the parts I need for the hobby.  I want to support bricks and mortar stores, but when I get there and put my money down, I should not be performing quality control for any product I purchase, especially if that product carries a premium price, and is not labelled as a factory defect or second.  There; I can move on.

As I wrote in my previous post, I wanted to move the project forward.  Chris’s question was whether the Stewart sideframes are good enough to keep if the wheelsets are replaced.  Let’s go through some photos and figure this out.

Here’s a photo of a truck on the prototype car.


Next is a series of photos of the stock Stewart trucks from my models.




You’ll have to ignore the compression that took place when I took the prototype photo with a telephoto lens, and the expansion that took place when I took the model photos with my iPhone set to wide angle.  The Stewart model appears to have the correct proportions, despite these distortions.

The Stewart part is missing some finer details on the journal doors, the openings at the ends of the frame, and the insides of the bolster openings.  The lip around the opening in the truck frame is too pronounced.  The overall dimensions seem appropriate for a 70 ton truck.  The detail that bugs me the most is the area under the springs on the frame.  That looks different from the prototype.

I suspect that Stewart was aiming at representing a 70 ton capacity ASF A-3 Ride Control truck (with solid bearings, obviously).  I don’t know the origin of the trucks on the TH&B car.  Maybe they were cast by National Steel Car themselves, and are therefore going to be slightly unique from the ASF trucks.  Maybe my spotting is off.  I’m hoping someone can enlighten me on this.

Tangent Scale Models builds a much nicer model of a truck that represents the same prototype as the stock Stewart truck.  This is still not an exact match to that on the TH&B car (again, my spotting could be off).  Here’s the Tangent model (image is from their website).


There are some other quality representations of the ASF truck available in HO scale, but the photo of the Tangent model illustrates the improvement in quality that’s taken place over the past two decades.  My options, as I see them, are to equip the stock trucks with replacement wheelsets, or buy something like the Tangent trucks.  The stock trucks with replacement wheelsets will certainly work.  Whether they match the level of detail on the car the way I’ve modified it is a question I’ll wrestle with over the next while.  I’m leaning toward the Tangent truck with semi-scale metal wheels.

Thanks for the question, Chris.  What would you do?

TH&B 70 Ton Hoppers Part 5

It’s been a while since I posted about these cars.  I started this project as a way to take a break from the CP ore car assembly line.  I bounced back over to the ore car project until I got them to the point that they’re stored at the club, and now I’m back onto these cars.

In the previous post on this topic, I had sprayed both cars with Polly Scale Engine Black that I toned back a bit with some white.  When that had cured, I applied about five or six coats of Microscale Micro Gloss.  I find this product takes quite a few coats to build up a good shiny surface to take decals.  When the gloss coat was cured, I applied the superb Aberdeen Car Shops decal set  THB-8710.


After my considerable break from these cars, I managed to get the couplers attached.  I used Kadee #58 couplers in their own pockets and screwed them in place with a short 2-56 screw.  I installed Details Associates stirrup steps on all corners of both cars.  These are not exactly correct for this car because they are mounted below the frame sill, whereas the actual stirrup steps are bolted to the side.  I’ll live with these until I find the part (if it exist) and I’ll switch them over as time permits.

Last week, while I was stocking up on supplies for a number of different projects, I bought two sets of True Line trucks with metal wheels to use for these cars.  I have some True Line cars and they roll OK, so thought these would be worthy.  When I took them out of their packages this morning, I discovered that each truck had at least one wheel that was incorrectly mounted onto its axle.  That was frustrating, so they went back to the store.  Without anything else on hand, I used the trucks that were supplied with the kit.  The wheels are plastic on brass-ish axles… dodgy at best.  I might look for trucks with nicer detail, but these aren’t too bad.   I’d like to put some semi-scale wheels on these cars.  At a minimum, I’ll replace the wheelsets with a metal ones.  I kept the dodgy ones from the kit on the car for the photos.

Speaking of photos, it was a beautifully sunny afternoon, so I took them outside to get some pics in the daylight.

IMG_2156 IMG_2157

Overall, I’m pleased with the way that the cars look with all of the cast-on details replaced with finer parts.  I’ll post back here with an update once I get them weathered.

TH&B 70 Ton Hoppers Part 4

When a set of TH&B decals made by Aberdeen Car Shops grabbed my attention last summer, I decided I should extricate a pair of Stewart 70 ton hoppers from a plastic bin under the basement stairs.  With the help of Lance Brown and his archives of TH&B historical documents, I established the purpose and routing for these cars on the WRMRC.  It was time to build up the models.

Surely, someone like ExactRail or Tangent will produce a model of a 70 ton hopper that meets the current standards of detail that we’ve come to expect from ready-to-run models in 2013.  Until that time, we have to settle for the Stewart model of the same car.  The Stewart model represents and excellent overall rendition of the TH&B cars, but the cast-on grab irons leave much to be desired.  There is very little work left for the modeller bring the car up to the standards of commercially available models.   However, as crude as the details appear on this model, it provides the modeller with an economical path to amass a large fleet of hoppers.  A large layout with a hundred ExactRail hoppers would be a considerably larger investment a population of Stewart hoppers.  I doubt I would undertake these improvements if I had to build a hundred cars.  The stock Stewart car would have to suffice.

My models represent two of about four cars that will be required for slime service on the WRMRC, so I have no reservations about changing out the cast-on grab irons.  The most tedious part of this relatively easy project was the removal of the grabs.  A chisel blade and some patience rendered the car entirely denuded of a variety of cast-on detail.

A Stewart 70 ton hopper before the removal of its details.

A Stewart 70 ton hopper before the removal of its details.


The grab irons and brake wheel details need to be removed.


Here, both cars have had grab irons, stirrups, and roping anchors removed.


The overall dimensions and panel details are quite nice on the Stewart model. Oddly, they neglected to address this casting post in the centre of the hopper. A chisel blade cleans this up nicely.


The process I used to locate the holes for wire grabs was to first cut the cast-on rivets, leaving a clear location for each hole.  I’d lightly ream the location, then drill holes.  After all the drilling was finished, I removed the rest of the grab iron detail.  Once the details were removed, I used some 1200 and 1500 grit sandpaper to smooth out the areas where I’d worked.  This shows the progress at the b-end of both cars. Grab irons were custom bent for the ends. Those are 18″ grabs. The side grabs are stock Details Associates parts. Brake parts have yet to be added.


Similar to the b-end, the a-end of each car has hand-bent grabs on the ends and Details Associates parts on the sides. The various handrails on the end sills and between the end posts needed to be bent to fit.

Once the wire details were in place, the weight of the car needed to be addressed.  The car comes with two pieces of steel cut to fit under the slope sheets.  The weight of the car as it comes from Stewart is about half of what it needs to be.  One solution would be to cut new slope sheet weights out of lead to replace these steel pieces.  The lead I had on hand was too thick to double up, and the additional weight of  a single layer of lead was too minimal to make a difference. I opted to use the stock steel weights.


The car needed more weight to bring the car up to standard. The underside of each bay offers a hiding place for small bits of lead, but I also managed to insert long narrow rectangles of lead into the centre beam of the car.

Lead weight fitted into the centre beam and glued into place.

The shiny strip down the middle of the centre beam is two narrow rectangles of lead cut to fit and glued into place.

I decided that, in addition to what I added to the centre sill, I would add more weight wherever I could find space to hide it once the car was assembled.  At this point I added the brake details to the b-end of the car from Cal-Scale castings, chain, and bits of brass wire.  Because I had removed the thick platform cast for the brake wheel, I built a new platform from some walkway etching and .005 styrene.  Then I attached the brake cylinder, triple valve, and reservoir to the frame casting and ran some basic air lines.
IMG_1999I couldn’t find clear photos as proof, but I suspect that I mounted the air reservoirs incorrectly on both cars.  From the vague shadows I can see in my reference photos, it appears that the tanks are parallel to the rails instead of perpendicular as I’ve done on my cars.   The kit provides mounting tabs to build the cars as I did, and I discovered the possible error after I’d already used the tabs and added air pipe details.  I decided to leave this (possible) error.  If I get better photos of this area on the prototype cars, I’ll build the next pair of cars more accurately.  This is a trade-off I was willing to live with in order to keep some forward momentum happening with this project.

At this point, I sprayed the car with Polly Scale Engine Black with a bit of primer grey mixed in to dial back the intensity and fade the car a bit.  The corner stirrups and cut bars will be added later because these parts are fragile.  Once the decals are finished and weight is added to the hollows between the bays, I’ll add the remaining parts and weather the car.


This photo nicely depicts the level of detail that I find sufficient to improve the overall appearance of the Stewart kit. This is still not the same level of detail one finds on many kits nowadays, but I’m fine with moving on from here.

 Next time I’ll write about how I chose the numbers and paint scheme for these cars.

TH&B 70 ton hoppers – Part 3 Sudbury Slime Service

In the previous post in this series on TH&B 70 ton hoppers, I outlined the assignment of these hoppers during the 1970s.   Because I want to include these TH&B hoppers in regular operations on the WRMRC, I was particularly interested in their deployment to  slime service for INCO in Port Colborne.

TH&B 70 ton hopper 1228 in Kinnear Old South Yard. Photo by Gerry Schaefer

TH&B 70 ton hopper 1228 in Kinnear Old South Yard. Photo by Gerry Schaefer

Lance Brown had done a great deal of research for the background information included in the Aberdeen Car Shops decal set for this car.  I approached Lance to provide me with specific information about slime service so that I could know the approximate frequency of carloads.  When I asked Lance to dig through his records he discovered that, not surprisingly, slime production rose and fell dependent upon INCO’s manfacturing, and the volume of slime load generally decreased over the years.  Lance used records for 1971 and 1979 to compile a list of slime shipments from INCO in Port Colborne.  Here are the 1971 shipments showing the date of the shipment and the car number that carried it.  Car numbers are TH&B 70 ton hoppers unless otherwise noted.

January 1971

04 – 1234
08 – 1219
12 – 1200,1211
21 – 1234

5 Slime Loads Total

February 1971

01 – 1229
05 – 1200, 1246
08 – 1219
10 – 1211
11 – 1206, 1234
17 – 1243
23 – 1246
24 – 1200
25 – 1219
26 – 1211

12 Slime Loads Total

March 1971

01 – 1206
05 – 1230, 1234
09 – 1243
16 – 1219, CP 348969 *
22 – 1211
25 – 1230
26 – 1200
31 – 1206

10 Slime Loads Total

April 1971

06 – 1247
07 – 1234, 1211, CP 348346*
12 – 1246
19 – 1206
21 – 1243
22 – 1230

8 Slime Loads Total

May 1971

06 – 1234
11 – 1211, 1246
12 – 1230, 1206
18 – 1247, CP 348316 *
26 – 1200

8 Slime Loads Total

June 1971

03 – 1219
11 – 1234
16 – 1243
17 – 1238, 1230
18 – 1200
22 – 1205
24 – 1247
29 – 1243, 1234

10 Slime Loads Total

July 1971

05 – CP 348288
06 – 1219
07 – 1230
08 – 1200
09 – 1247 – 1205
12 – CP 348235
27 – 1211
29 – 1238
31 – 1248

10 Slime Loads Total

August 1971

Data not available.

September 1971

Data not avaialble.

October 1971

01 – 1209,1247
07 – CP 357757, 364027, 359433, 357904, 357939, 364939 **
08 – 1200,1206, CP 364299, 364348, 359087, 357561, 357677 **
14 – 1234, CP 343714 ***
16 – 1219
20 – 1230, CP 348252 *
22 – 1238, 1243
26 – 1201

21 Slime Loads Total

November 1971

02 – 1211
05 – 1200
08 – 1204, 1234
10 – 1205
12 – CP 348765 *
16 – 1247
17 – 1243, CP 348101*
18 – 1238, CP 348006 *
25 – 1211
27 – 1234
30 – 1205, 1219

15 Slime Loads Total

December 1971

03 – 1243
04 – 1200, CP 348863 *
08 – 1230
09 – 1211, 1206
10 – CP 348484
14 – 1219
21 – 1234, 1238
23 – 1243

11 Slime Loads Total


87 Shipments in 1200’s
23 Shipments in CP Equipment

Total Number of Slime Loads Handled (10 Months) 110 Cars
Monthly Average 11 Slime Loads (10 Months)
Weekly Average 03 Slime Loads (10 Months)

* High Side Drop Bottom Gondolas (Otis Design)
** 70-Ton Triple Hoppers (Similar to 1200’s)
*** High Side Woodchip Gondola

With an average of about 3 car loads per week in 1971, we would need a small pool of TH&B 70 ton hoppers on the WRMRC.  But one interesting revelation was the fact that there were CP cars assigned to this service as needed.  Laverne Tritton, former Freight Agent for TH&B at Welland confirms that the majority of slime shipments went in TH&B 70 ton hoppers, but CP drop bottom ore cars sometimes showed up at Welland to be loaded with slime at Port Colborne.  And if there is any doubt about Lance’s primary source documents and Laverne Tritton’s memory, here is a photograph of a drop bottom ore car in Aberdeen yard, just to the right of and behind TH&B 58.

TH&B 58

CP’s 70 ton hoppers and older woodchip cars were also assigned to slime service as needed, but I like the fact that the drop bottom ore cars I’m building found a way into this series on the TH&B hoppers.  According to Lance’s records, INCO received a variety of inbound raw materials by rail including nickel matte, soda ash, borax, pellets, firebrick, chlorine and charcoal. Outbound shipments consisted primarily of slimes and finished nickel in TH&B and CP boxcars.

For comparison to the 1971 data, Lance Brown provided me with the same data from 1979.  As before, the data shows the date and car number(s) assigned.  All car numbers are TH&B unless noted.

January 1979

Data not available.

February 1979

Data not available.

March 1979

Data not available.

April 1979

No Slime Shipments From INCO.

May 1979

No Slime Shipments From INCO.

June 1979

26 – 1226, 1205, 1223, 3662, 3628
29 – CP 357780, 357453, 57133 **

8 Slime Loads Total

July 1979

No Slime Shipments From INCO.

August 1979

01 – 1205
02 – 1202
10 – 1223
17 – 1205
20 – CP 348631 ***
21 – 1218, 1238
22 – CP 357649 *
23 – CP 358327 *
24 – 1220, CP 357837 *
31 – CP 358594

12 Slime Loads Total

September 1979

05 – CP 358827 *
07 – CP 358527 – 365807 *
13 – 1238
17 – 348359 ***
20 – 348172 ***
24 – 1201, 1226
27 – 1218

9 Slime Loads Total

October 1979

02 – 1234
04 – 1214
12 – CP 348029 ***
15 – CP 348573 ***
16 – CP 348088 ***
17 – CP 348179, 348294 ***
18 – CP 54143 **
19 – CP 365821 * , 348354 ***
23 – 348637 ***
29 – 1214, 1220

13 Slime Loads Total

November 1979

05 – 1218, 1200, 1231
06 – 1234, 1249
09 – 1211
16 – CP 348088 ***
19 – CP 348294 ***
21 – 1202
26 – 1225
30 – CP 348637 ***

11 Slime Loads Total

December 1979

04 – CP 348809 ***
07 – CP 348573 ***
12 – CP 348294 ***
28 – CP 348088 – CP 348637 ***

5 Slime Loads Total


26 Shipments in 1200’s
02 Shipments in 3600’s
29 Shipments in CP Equipment

Total Number of Slime Loads Handled (9 Months) 57 Cars
Monthly Average 6 Slime Loads (9 Months)
Weekly Average 1.5 Slime Loads (9 Months)

* 70-Ton Triple Hoppers (Similar to 1200’s)
** 40′ Boxcar
*** High Side Drop Bottom Gondolas (Otis Design)