55n3 Reboot -Proof of Concept
My original intent with 55n3 was to build 1870s three foot narrow gauge. Then someone asked if On30 Bachmann equipment could be used for 55n3 and got diverted to that tangent.

Scale55 is the only scale that early three foot narrow gauge works easily. Being HO gauge the use of HO mechanisms and locomotives come into play.

The MDC/Athearn 2-6-0 is a good fit for 55n3. The straight boiler is typical of early D&RG locomotives. New smaller drivers are available from UK suppliers.

[Image: mdc_260_1.jpg]

Wondered if my stockpile of IHC/Rivarossi 4-4-0 could be used as 55n3.

Found a early porter drawing and compared. Yipes! We have a seminal 4-4-0. Sound can be added like my HO Bachmann
4-4-0 upgrade.

[Image: Ihc_porter1.jpg]

[Image: merged_ihc_1.jpg]

The PBL Sn3 cars are a close match to the Ohio River and Western Box and other early narrow gauge boxes. The Sn3 cars are more about the gondolas and cattle cars.

Making gons is very labor intensive compared with house cars.

[Image: ihc_pbl1.jpg]

[Image: pbl_gon1.jpg]

The trucks can be regauged easily.

[Image: pbl_regauged2.jpg]

Now your question will be "Why not just Sn3?", because Sn3 and the other scales don't have motive power for 1870's narrow gauge.

The hardest part about an off-scale is determining if an object is the right size.

Found this site with cars and trucks listed at 1/64. They sell this paper model garage. I took the picture of the garage and scaled the photo to 1/55 using a figure height of 30mm.

[Image: rural_garage.jpg]

Looked like the cars would work in Scale55. Ordered one. Upon receiving the kit the car looked small but placing the parts on a set of scaled plans the car was Scale55.

[Image: reveisco_model_t.jpg]

Love scrounging for stuff, that is what makes odd scale modeling so much fun

I've always found your stuff interesting and informative, Harold, but I somehow missed this one.  While I model in standard gauge HO, good ideas aren't necessarily scale-specific, and you always come up with worthwhile ideas.

Feeling in the mood to think about building a 55n3 layout, I re-examined PECO 0-16.5(On30). Love PECO track, sturdy, robust and available. Something for the ham-handed.

[Image: peco_track1.jpg]

How close is PECO track to 55n3, the ties are 8 inches wide x 6 feet long on 26 inch centers?

The D&RGW had these specs:

"The ties have a cross section of (HxW) of 6"x8" (15.25cm x 20.32cm), regular ties have a length of 6' "

"It seems that 30' long sections of rail were most common, 16 ties were used for such a section, resulting in a distance of 22 1⁄2″ from mid of tie till mid of tie. For 33' long sections of rail a distance of 22" and for 39' long sections of rail a distance of 21 1⁄4″ had been defined."

The Narrow Gauge and Short Line Gazette Nov/Dec 89 had an article on track and the PECO track fell within many railroads parameters.

[Image: Fig.-6-turnout-41-points.png]

Even got some figures painted.

Wanting to retain my PcalRwy passenger car lettering that I had done earlier in On30.

[Image: passenger_car.jpg]

Searching references the Bachmann passenger cars are 10'-3" high in the body, most narrow gauge cars are about 9'-3". Standard gauge cars match the 10'-3" height of the Bachmann cars.

[Image: passenger_1.jpg]

Works for me.

The Bachmann passenger car's interior is actually Scale55. These Scale55 figures fit the seating. O scale figures are too big.

[Image: mth_figures.jpg]

Referring to my previous post about the Bachmann passenger cars being 10'-3" in Scale55 brings up a question.

Were there any 10'-3" narrow gauge cars?

Going south of the border the answer is yes. The Mexican narrow gauge lines had tall narrow gauge cars in both wood and steel.

[Image: mexican_2.jpg]

The Bachmann cars work as issued.

Haven't been here in a while. Found this in one of my wanderings looking for something else.

HO locomotives translate to small loggers and plantation locos in 55n3 better than any other scale. Always knew there was a loco that would match the HO Bachmann Alco 2-6-0. A good match for the Godchaux #4 2-6-0 sugar plantation loco.

[Image: bachmann_alco_2-6-0.jpg]

[Image: mining.jpg]

"I see narrow gauge"
Harold - I noticed the UK drivers in your post above. What axle diameter do they use?

I'm think in of using some 12 or 13 mm diameter drivers for HOn3 projects.

Check out my Shapeways creations!
3-d printed items in HO/HOn3 and more!
<!-- m --><a class="postlink" href="https://www.shapeways.com/shops/kevin-s-model-train-detail-parts">https://www.shapeways.com/shops/kevin-s ... tail-parts</a><!-- m -->
Go here:

Scalelink Driving Wheels and Axles

They have drivers and HOn3 axles.

While out rubber gauging I remembered this conversion of the Bachmann HO 2-8-0.

This was a conversion that showed up in the early days of On30. The mogul body can be adapted to the HO Bachmann Consy or the Mogul cab and domes can be used on the HO boiler to make a 55n3 SP style consy. The drivers never scaled well for Scale48.

[Image: sp_bachmann1.jpg]

[Image: sp_bachmann3.jpg]

[Image: NCNG09A.JPG]


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