MOC: Tm 3/3

[Steinkopf]

Hello Everyone

Here are some photos of a shunter that I have built for my LBB, I recently did a slight redesign of the short nose section as I was not happy with the original approach I took when building her. The design is a Freelance build and captures a lot of elements typically found in these small locomotives, I was inspired by a number of designs including the OBB 1067 Class http://www.railfaneurope.net/pix/at/diesel/shunter/2067/red-white/083-111/2067-096-mt.jpg , BOB Tm 2/2 http://www.railfaneurope.net/pix/ch/narrow_gauge/BOB-group/BOB/locomotive/BOB1io2.jpg , and the RhB Gm 3/3 http://www.railfaneurope.net/pix/ch/narrow_gauge/RhB/diesel/Gm3_3/RHB-GM3-3-231.jpg, Tm 2/2 http://www.railfaneurope.net/pix/ch/narrow_gauge/RhB/diesel/Tm2_2/111-120/RhB_112.jpg classes. I wanted to make a compact little locomotive that could be used anywhere from station pilot duties to shunting freight yards, industrial and harbour lines, the locomotive is similar in size to a 4 wheel freight wagon.

Here is the backstory about the locomotive.

The LBB purchased a total of 5 Tm 3/3 Shunters between 1968 till 1974 and they are the smallest locomotives in the LBB fleet, they have a rating of 250hp and a top speed of 40km/h. These small but handy locos can be found at a variety of locations on the LBB network shunting trains in freight yards or industrial sidings.

Seen here with a G6 Ventilated Van for a size comparison.

Edited March 8, 2012 by Steinkopf

[LEGO Guy Bri]

Very nice shunter 'Steinkopf'. I like the curves of this little engine and the extra set of wheels work very well with this MOC. Keep up the fantastic engines

[LEGO Train 12 Volts]

Nice shunter and also another great wagon!

Your collection seems to be endless!

[mpec82]

A cute little loco.

[lightningtiger]

AWESOME little shunter 'Steinkopf', you are proving to be a wiz at train designing eh ?

Keep them coming and Brick On !

Edited March 8, 2012 by lightningtiger

[eurotrash]

It looks fantastic! One quick question though is how does the three bogie wheel system handle curves, points, etc?

[LEGO Train 12 Volts]

It looks fantastic! One quick question though is how does the three bogie wheel system handle curves, points, etc?

If you look closely at the second picture you can see a pivot point between the motor and the third wheel

Edited March 8, 2012 by LEGO Train 12 Volts

[Steinkopf]

It looks fantastic! One quick question though is how does the three bogie wheel system handle curves, points, etc?

The front wheelset is articulated and has got a very good range of traverse, the loco is able to negotiate points, curves and reverse curves with ease traveling in forward and reverse, the loco is able to do this when running light or with rolling stock coupled to it. When I build my trains I always set up a test track with points and reverse curves to test out how they run as a chassis first and as a complete loco later on at a wide range of speeds, I test them running on their own as well as pulling and pushing rolling stock in both direction to ensure that there are no issues with how the locomotive performs. Here are some photos to show you the setup, the design is about 4 years old now and has worked perfectly it is quite simple to build yet it is very effective in operation.

Edited March 12, 2012 by Steinkopf

[harnbak]

The front wheelset is articulated...

Thanks for sharing...

[MetroiD]

Indeed, thanks for sharing. The three-wheeled bogie looks great, and obviously it also works that way. A really top solution for any compact shunter, bravo!