- This topic has 14 replies, 5 voices, and was last updated 1 month, 3 weeks ago by
Dale Sims.
-
AuthorPosts
-
November 1, 2025 at 10:24 pm #66637
It’s a start on a giant model of the unusual X12 Atomic Locomotive. In 1954, Dr. Borst from the University of Utah proposed a nuclear powered locomotive and postulated a theoretical design that intended to last an entire year on just one charge of liquid dissolved U235 fuel. With the technological constraints of his time, he was able to put the design into a two-sectioned locomotive, with the reactor in the middle of the front half and the back half being the necessary radiators to keep the machine cool.
Given my nature as Phoenix Train Works to model and build trains used in the nuclear energy industry, even I was surprised to have never heard of this train until my lil bro mentioned it one day last week or so. The Lego model is currently about 45 inches long and features articulation techniques to make it work on R40 curve track (with “SOME” overhang). The real train design has the center set of wheels motorized whereas in this model, the motor drive is between the front and middle wheel set, powering the nearest axles while the other two axles in each set pivots on their own.Attachments:
You must be logged in to view attached files.November 8, 2025 at 1:08 am #66691
Dale SimsParticipantI have heard of a lot of different and unique train designs, but never this one. I like this concept. Sadly, I could see it ending up as an ill fated Die Hard sequel. 😀
November 10, 2025 at 12:51 pm #66722November 10, 2025 at 12:53 pm #66724And a cool cutaway view I did in photo editing. XD
Attachments:
You must be logged in to view attached files.February 4, 2026 at 1:36 pm #68204I’ve started ordering parts for the X12 Atomic Powered Locomotive in small batches. Should be done in time for the next TUBS show as part of the PTW collection of educational STEM themed trains. Of course, we’ll try running it on the LUG city layout. @dales 🙂
February 4, 2026 at 2:24 pm #68205
Dale SimsParticipantI think it’ll be awesome to see in motion!
I’m looking forward to getting some inspiration from the NMRA show here in town this weekend. I like building the non-realistic trains or some of the concept ones that never came to be.June 17, 2026 at 3:36 pm #70057Since the inside of the locomotive is filled with four motors, two battery boxes, differentials, etc., been working on a standalone diagrammatic model of the nuclear powered electric motor propulsion to go alongside the train.
Attachments:
You must be logged in to view attached files.June 26, 2026 at 9:36 pm #70128@playingwithechoes awesome nuclear train there. Do you want to exhibit it at the American Nuclear Society outreach table at the Vintage Grand Prix? I’m planning to be there with my reactor, cooling tower and microscale AP1000 plant on Saturday and Sunday July 18 and 19. Or any of your other nuclear stuff?
June 30, 2026 at 1:08 pm #70137Hi Nancy. I have family in town that weekend so I can’t. But I will be sure to stop by and check out the table when we do visit the Grand Prix as part of the planned family activities.
June 30, 2026 at 1:10 pm #70138Here’s two photos of the finished build from the planned unveiling on July 4th on my Phoenix Train Works Page.
Attachments:
You must be logged in to view attached files.June 30, 2026 at 1:13 pm #70141Don’t know if you saw it on FB, Dale but here’s the video of it in action. It’s in black and white like an old 1950s film, as most of my footage of trains being tested are in black and white.
June 30, 2026 at 1:49 pm #701439/10, not enough “neutrons hitting the image sensor” flares in the footage 😁
July 2, 2026 at 1:31 pm #70155That video is amazing! Bravo
July 4, 2026 at 12:20 am #70175Excellent music choice.
July 24, 2026 at 9:11 pm #70371
Dale SimsParticipantThat engine looks so funny going around those tiny curves. 😀
-
AuthorPosts
- You must be logged in to reply to this topic.