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LEGO models my own creation MOCpages toys shop 4-8-4 Emerald Night NorthernTrains
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4-8-4 Emerald Night Northern
This is the premier of the 4-8-4 Northern configuration steam locomotive of the Emerald Night Class.
About this creation

Nacho Enterprises Railway System (NERS) proudly presents the newest locomotive in the Emerald Night Class of locomotives. This new locomotive has been upgraded from the standard 4-6-2 "Pacific" configuration to the 4-8-4 "Northern" configuration. This improvement allows the new locomotive to pull heavier and longer passenger and fast freight trains. The locomotive being showcased here, Number 120479 (aka the "Briana"), has a streamlined smokebox that is exclusive for the passenger locomotives of this class.



Here is a side view of the locomotive. As you can see, it boasts a larger firebox than its 4-6-2 brethren, which is only made possible due to the extended trailing truck. The locomotive has been extended by eight studs, while the tender has a six stud extension. I made the locomotive longer in order to fit two M-Motors inside the boiler. The only thing that I do not like about this design is how the motors are exposed. This is unavoidable given how I wanted to keep the same look as the original Emerald Night locomotive.



A front view of the locomotive.



The rear view of the locomotive. Once again, I tried to keep the look of the Emerald Night as much as possible.



This is the back part of the main locomotive. The larger firebox is better seen in this picture. There are no drive rods on the main wheels since I will be using the custom drive rods from zephyr over on Bricklink.



The Battery Box is still housed inside the tender, just like the original Emerald Night tender. This locomotive, like its brethren, is also a coal burner.



Inside the cab is a much newer and upgraded control system.



Inside the firebox is an area that I can connect an Extension Wire between the Battery Box and the IR Receiver, which sits further up the locomotive.



This is another view of the locomotive's front.



I removed the sides to show the internal setup of the motors and IR Receiver.



This is the layout of the gearing, axles, and motors that I used to stuff two M-Motors inside of the boiler. All of the gears are 12-toothed, giving this a 1:1 gearing ratio. I saw this setup somewhere, but I cannot remember where. I would like to give credit, but alas I cannot. My apologies to anyone who might recognize this.



*Twitch's Remarks*
First off, I am back from my deployment to Durkadurkastan! Also, I have just recently finished my vacation with my wife, so my apologies for being slightly inactive on this site. Real brick creations will be posted soon!
This locomotive is a combination of two things. First, I found a way to put an M-Motor inside of the locomotive's boiler, unlike my failed design. Also, it is a much needed improvement over the earlier 4-8-4 design that I created. Even my wife likes the aesthetic improvement. I did not like the earlier design too much, and as such created this. I realized that with the 4-8-4 configuration that I could fit two M-Motors inside the boiler. Since the locomotive was longer, I needed to make the tender longer as well. The original Emerald Night is based on a European design, so making it a 4-8-4 added some American influence into it. The rounded smokebox is also of American influence, just like my earlier design.
I am currently working on ordering this in real bricks, and I will also modify my two Emerald Night locomotives to have this much more successful internal M-Motor configuration. Since I believe in designing MOCs with as much playability as possible, I believe in having the cab free of a motor.
My only concern about this design is having the blind wheels being on the first and third drive wheel axles and how the leading truck is connected. I am unsure if it will be able to successfully navigate turns. Right now I am unable to test this out, but I believe that it should work. Any suggestions and/or remarks on this would be very helpful.


Building instructions
Download building instructions (LEGO Digital Designer)

Comments

 I made it 
  April 28, 2013
Quoting jd davis btw I also am going to try to use zephyr's rods on the j1. they look really nice and the reviews are good. I don't have a set of rods yet but im working on that
Same here, I have heard nothing but great things about the rods. I am going to update my two Emerald Night locomotives with the rods. So I did find one problem with this MOC's design, and it was an easy fix. When I tested the wheel design out on real tracks (courtesy of my two existing locomotives), I found that the trailing truck would not go around curves. So I changed the connecting design to that of the leading truck, and it works great.
 I like it 
  April 15, 2013
btw I also am going to try to use zephyr's rods on the j1. they look really nice and the reviews are good. I don't have a set of rods yet but im working on that
 I made it 
  March 30, 2013
Quoting jd davis Very nice twitch I do think that this is an improvement over the earlier northern design
Thank you! I do agree that this does look more like a locomotive.
 I like it 
  March 30, 2013
Very nice twitch I do think that this is an improvement over the earlier northern design
 
By TF Twitch
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LEGO models my own creation MOCpages toys shop 4-8-4 Emerald Night NorthernTrains


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