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Styrene was used to make both the new bolster/jacking pad and the new side sill extension (above). Note the small hole drilled in the jack pad. The view of the car’s “A” end (below) shows the arched roof taken from an Atlas model. Putty was used to fill in any cracks.


glue them at the end of the hopper body using the photo as a guide. After you have the roof cut and filed to fit the body, trim the supports for the roofwalk so they angle toward the roof. Cut and file the bottom of the Atlas Trainman roofwalk, then glue it to the top of the ACF 5,701 cubic-foot car roof. Now you can add the hatches of your choice inside the running board, which will also cover up the individual hatch outlets of the ACF roof. When you have this assembly finished and dry, test fit it into the body and make any adjust- ments, then glue it into the body. I used small clamps against the sides of the hopper to make sure the sides glued nicely to the body and the roof while drying. Now is the time to glue in the


Bill of materials


Atlas No. 20000128 Thrall 4,750 cubic-foot covered hopper, undecorated (four) No. 8820000002 ACF 5,701 cubic-foot centerflow covered hopper roof (four)


Walthers No. 932-7800 series Trinity RD4 coal hop- per (eight)


InterMountain Railway Company No. 40399 4,750 Cubic-foot covered hop- per (four for hatches)


Plastruct No. 057091106 .080″ Styrene sheet


Micro-Mark No. 84113 Same Stuff Plastic Welder 2 oz.


Squadron/Signal No. 9065 White putty 2.5 oz.


Next, cut out the pieces for the car sides from the Walthers coal hoppers. I used most of one side of a coal hop- per for half of the side of the covered hopper. You should use an entire coal hopper for each side of the covered hopper, which is why you will go through many coal hoppers for just a few covered hoppers. After cutting the Atlas Trainman car body and the Walthers car sides, you can start trying to fit the sides together and see how accurate your cutting is. When cutting, I leave some space, as it is always easier to file off extra materi- al instead of adding it. Use a metal file to smooth the edges of the car sides and custom fit each piece onto each hopper side, continually filing until it fits right. Glue all the sides together and onto the body using plastic glue. After this work, your hopper should be coming together (see the second photo on page 74).


Next up is the roof, which will require RAILROAD MODEL CRAFTSMAN


a little more work. Before starting this step, screw in the weights for the Atlas Trainman hopper and make certain they are in their final place. The roof will be glued on, so make sure you don’t need to take it back off for weight ad- justments. Now, cut off the sides of the Atlas Trainman roof, which will help the roof from the Atlas ACF 5,701 cubic- foot car fit snugly into the body. To do this, carefully cut a line along the edge and try to get very close to the edge, but do not cut through it. You may have to file off some roughness on the inside of these edges. The result is a long edge that provides a lip over the new alu- minum car sides. Glue these to the top of the sides.


The roof from the Atlas ACF 5,701 cubic-foot covered hopper will have to be cut down in length. Just measure the roof against the body, mark, and cut. When working on the roof, cut out the half-circle ends to use for the new roof. File these into a smooth curve and


Badger Modelflex No. 16-39 SP Letter Gray 1oz. (primer) No. 16-86 Missouri Pacific Blue 1oz. (bearings)


Polly Scale No. 414299 Flat Aluminum 1 oz. No. 414323 Rust 1 oz. (wheelsets)


Rust-Oleum No. 7701830 Crystal Clear Enamel Spray (gloss coat)


Walthers No. 904-470 Solvaset decal setting solvent


Microscale No. 87-19 Rock Island Freight Car Block Lettering (for reporting marks) No. 87-1229 Rock Island Cabooses Early Lettering (for logos) No. MC-4313 Farmland Industries Trinity Covered Hoppers (for data)


Kadee No. 5 Metal couplers


75


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