Chattanooga Modular Modelers, Inc. a 501c3 public charity

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Chattanooga Modular Modelers, Inc. a 501c3 public charity

Model Railroad Group that meets every Thursday from 6:30pm till 9pm (except US holidays) 1223 E.34th

Model railroad enthusiasts building scale modular model railroads in HO & N scales. Occasional participation in local events with model railroads on display. We meet every Monday and Thursday from 6:30pm till 9pm (except US holidays) 1223 E.34th Street, Chattanooga, TN 37407

06/03/2026

⚓️ Are there any military aficionados among us?

Today, we have another rare visitor to come through Chattanooga from Canada: Along with KCS on point, this Canadian Pacific locomotive is painted in Royal Canadian Navy Shipside Grey and Oxide Red with black markings and a black band to mimic the “boot top stripe” used in the color pattern of modern warships. The road numbers use the same font used currently by the Royal Canadian Navy and are enlarged to represent the hull numbers found on Navy equipment. — In many ways, the SD70ACU is a modified SD90MAC. The SD90MAC struggled to find a place on US and Canadian Railroads in the 90s. While Union Pacific and Canadian Pacific purchased many of these engines – smaller railroads felt alienated from the gigantic prime movers which limited the SD90MAC’s operational use. In 2016 Norfolk Southern decided to convert several SD90MACs to SD70ACUs, the Siemens tech was swapped with Mitsubishi components and the cab was replaced with the SD70ACe’s cab.

Canadian Pacific decided to rebuild their collection of SD90MACs as well. However instead of going to Norfolk Southern to rebuild these engines, they reached out to Progress Rail instead. 60 ACUs were delivered in 2019, and this order contained several heritage units. These special heritage units were used to commemorate different branches of the US and Canadian Army. CP 7022 is considered the Navy variant. It’s detailed in a grey, red, and black paint which is inspired by Canadian and American warships.

CP 7022 Navy unit is available in HO and N scale, produced by Athern Genesis and Kato N respectively.

05/23/2026

🪖In Memory of Many, In Honor of All

05/21/2026

👨🏻‍🎨Can you really smell paint dry?

🚂TVRM's Southern Railway 4501 fires up its steam boilers as new paint is applied, getting ready for Summerville Steam Special excursion debut, May 23rd, with its celebratory repainting into its classic Southern Railway green passenger livery.🎉

Join Chattanooga Modular Modelers and TVRM at the Summerville Train Depot on Saturday, June 20th as we anticipate the arrival of Southern 4501 during our T-TRAK layout exhibit from inside the depot. Visitors can also enjoy the annual Summerville Ice Cream competition also from inside the depot.🥰

Where: Summerville Train Depot
120 E Washington Street
Summerville, GA 30747

When: Saturday, June 20, 2026
10:00am - 3:30pm
Free parking / Free Admission

05/18/2026

📽️Baltimore and Ohio, and Norfolk Central trains as seen from the lens of a 9 year-old.🚂

05/09/2026

🎉🚂Good Morning and Happy National Train Day!

Earlier, we have a couple special colorful visitors to Chattanooga; Norfolk Southern 1074 Lackawanna heritage SD70Ace unit and Norfolk Southern 1800 Sonic Bonnet Specialty SD70ACc unit.

05/07/2026

Yesterday, a coal train originating from Wyoming, passed through Chattanooga. What makes this train special are, two of the four locomotives are rare and an uncommon sight on this neck of the woods. They were the BNSF heritage Executive/(Gerald) Grinstein unit and a Montana Rail Link on the same train.

The father and son chase stared off from a dead stop, as seen at the start of the video, with the locomotives easing 16K tons of coal up to speed and took 30 minutes of enjoyment chasing the Montana Rail Link.

Montana Rail Link #4302 is one of only 29 of MRL SD70Ace that were purchased new from EMD in July, 2005 and is assigned as a Livingston, MT helper. The "W" logo on Montana Rail Link (MRL) locomotives represents The Washington Companies, the parent organization founded by Montana industrialist Dennis R. Washington.

The Norfolk Southern train, symbol NS734, is on its way to the most powerful coal-fired energy plant in North America, at Georgia Power's Juliette, GA plant.

Coal trains from the Powder River Basin, in Wyoming, to Atlanta typically takes 4-6 days to make the journey, contast to commercial jetliners taking only a little over 6 hours, including a stopover, to complete the same journey.

As of May 2026, BNSF Railway typically operates an average of six loaded and/or empty coal trains daily under its long-term contract to supply power plants in Georgia, such as Plant Scherer near Atlanta.

A full cycle, a continuous loop to maintain coal stockpiles, loading in Wyoming, traveling to Georgia, unloading, and returning empty—typically takes 10 to 14 days through 1,700 miles in each direction.

A coal train typically weighs about 16,000 tons of coal and up to 19,000 tons including the locomotives and the hopper cars.

A day like this will always be a child's most memorable experience with his father and stokes increased interest in model railroading.

05/04/2026

Once a month, a member of our club does a presentation of anything train related; from modeling, scenery, technical subjects, to railroad history, conveying using various formats, such as hands-on crafting to using PowerPoint. It's always fun to watch and is very informative.

In honor of National Train Day, which was formally launched by Amtrak in 2008 to promote rail travel, eight year-old Jackson made his presentation highlighting Amtrak's early locomotives. Because he did not own an Amtrak E60, he 3D printed his own, on his PLA printer, to make a better visual presentation, he then painted it.

National Train Day is a celebration held on the Saturday closest to May 10, marking the anniversary of the 1869 completion of the first transcontinental railroad.

05/02/2026

Niota Depot's important historical connection to the U.S. Constitution of 1920 as told by Sheriff, County Historian and Model Railroader, Joe Guy.

04/30/2026

CMM Club Treasurer and Jedi master model railroader, Joana Long, Creates a Stunning H.O. scale, Scratchbuilt Replica of the Babahatchi Inn (as seen when photographed in 1892) from the Southeast Region of the Country in Oakdale, Tennessee.

The Babahatchi Inn, originally built and constructed in Montgomery, Alabama, was moved in the 1890's by CNO&TP railroad to Emory, TN to house a busy and thriving railyard (now owned by Norfolk Southern railroad) and mining operation near Harriman, TN.

This miniature building, when finished, will be placed in the Oakdale layout section at the Tennessee Valley Model Railroad, Inc. at TVRM.

Google search: Babahatchi Inn, for more interesting historical details and information.

04/28/2026

🎪Come to the Niota Model Train Show; They said!
🎪You'll have a great time; They said!
🎪You'll see all types and scales; They said!

Sure enough....a 1:1 full scale model of NS' Reading heritage unit made a Bee 🐝 Line through a patch of clover field today, during the train show!

Address

1223 E 34th Street
Chattanooga, TN
37407

Opening Hours

6:30pm - 9pm

Telephone

+14234240352

Website

http://www.chattmodmod.org/

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