Transport Fever

Transport Fever

94 ratings
X-12 Atomic Locomotive
Scenario: USA
Vehicle: Locomotive
File Size
26.869 MB
Jun 16, 2017 @ 5:20am
Jun 18, 2017 @ 9:46am
2 Change Notes ( view )

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X-12 Atomic Locomotive

Far more attempts than anyone should be strictly comfortable with have been made to create an atomic locomotive. The Germans came up with a bizarre lozenge shaped unit[], and the Russians developed a two story monster[]. The Denver & Rio Grande Western railroad worked closely with the Atomic Energy Commission to repower conventional steam locomotives with atomic reactors in place of fireboxes, however this proved to be impractical. Perhaps the most fully-developed concept for an atomic locomotive came from a graduate student project: the X-12.

Dr. Lyle Borst came up with the project for his students in Physics 280: Nuclear Technology in 1952 at the University of Utah. The atomic locomotive was to compete with contemporary steam and diesel locomotives, and use only unclassified technology. (Reactor design at the time was rife with state secrets.) What they came up with was a behemoth 384 ton, two-unit carbody locomotive: the X-12.

The X-12 was designed to use a aqueous homogeneous reactor (AHR), using a uranyl-sulfate and water solution rather than conventional uranium rods. This was simply because the AHR's design was largely unclassified while other, more modern reactors under development at the time required security clearance to view or work with. The working fluid is water , which is passed directly through the reactor and the steam fed into the turbine with no heat exchanger between. The turbine, therefore, becomes highly radioactive very quickly, and is hence designed to be maintenance-free, requiring a service only once every ten years -- since servicing would require a lengthy and expensive decontamination process. The second car is entirely composed of radiators to cool and condense the radioactive steam before it is fed back into the reactor. The entire unit would have generated 7000 horsepower and would be run by a standard two man crew.

The X-12 as I have depicted it has had some alterations: to account for more modern turbine and reactor technology (boiling water reactor? light water reactor? thorium molten salt? who knows!) the power has been upped to 10,000 horsepower. The weight remains the same.

Stats for nerds:
Introduced: 2025
Power: 7500 kW (10000 horsies)
Tractive Effort: 950 kN-m (701,000 ft-lb)
Maximum speed: 100 mph. (it's for freight, whaddaya want?)

Animated Fans!
Bizarre and convoluted articulation!
Stylish 1950s good looks!
No exotic or high-tech materials!
Not autonomous!

Further reading:

Atomic Skies - To Peoria by Atom![]

EDIT: I suppose I have to put the words "futuristic vehicle" somewhere, after they were deleted when I did the update...

Link for non-Steam users: Clicky[]

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Paranoid Android Apr 29 @ 1:45pm 
Id rather youd have kept the starting date in the 1950s and the 7000hp .. and then maybe an updated version for later .. Nov 12, 2018 @ 10:11pm 
I have noticed that the front of this loco bears a striking resemblance to the Milwaukee Road's Little Joe's. Would it be possible to modify this so it would be double ended, have a catenary and in the railway's livery? Thank you!
Blackstar Oct 17, 2018 @ 9:58pm 
back in the 50s they came up with weird stuff. but i like this mod.
MagR Mage! Feb 25, 2018 @ 6:39pm 
I have came back from the future. I came is this train to save everyones lives!
nillax Jan 23, 2018 @ 5:10pm 
Pretty need engine, thumbs up from me. Just had a issue with it that other might be running into, so a heads up to the makers. Linux & Mac OS use case sensitive file systems & this mod points to some mis-linked files. Like "EMD_Co_Bogie.grp" which is named "EMD_Co_bogie.grp" on the file system level. Getting those pointers straightened out would help rememdy some folks issues.
Sqweloookle Jan 18, 2018 @ 11:21am 
Hey man, love your engine but it has done something odd at 7 years old. I have a pic, where should I send it to? Though I'll describe it. It turns transparent.
Sqweloookle Dec 20, 2017 @ 3:01am 
Tis it colourable?
sergeant_0ddball Nov 20, 2017 @ 7:01am 
yeah. you click on the vehicle, and it brings up the popup window. hold your cursor over the screen of the popup, and a little camera should show up. click on that, and it puts you in a view on the nose of the vehicle.
donoteat  [author] Nov 19, 2017 @ 1:03pm 
there's a cockpit view?
sergeant_0ddball Nov 19, 2017 @ 8:21am 
just an observation, but when I enter cockpit view, I am looking at the interior or the radiator car, not the track ahead