Posted on 08/03/2025 7:05:33 AM PDT by Morgana
BNSF Railway donated a historic SD70MAC to the Illinois Railway Museum. Locomotive 9400 was built in 1993 and is notable for being the first production locomotive (i.e., non-demonstrator) to feature modern AC traction, making it the precursor to thousands of units with this groundbreaking technology.
BNSF made the donation earlier this summer, and IRM announced it on July 31. IRM plans to eventually restore the unit to its as-delivered appearance, Burlington Northern’s green and cream “Executive” livery from the early 1990s.
Following testing of freight diesels equipped with AC traction motors in the early 1990s, BN ordered the first production run of AC motor-equipped diesels from EMD in 1993. The order, for 350 locomotives numbered 9400-9749, was built from November 1993 to mid-1996. These 4,000-horsepower locomotives were innovative not only because of their AC traction motors but also due to their radial trucks, computerized control systems, sound-deadened wide cabs, and “desktop” engineer’s control layout. Locomotive 9400 participated in a dedication ceremony at Fort Worth, Texas, in January 1994. During that event, Chicago, Burlington & Quincy E5 9911A “Silver Pilot,” on loan from IRM, was also present, representing some of EMD’s early groundbreaking diesels.
BNSF 9400 is not the only historic diesel to have recently been acquired by IRM. Earlier this year, two former Amtrak locomotives were donated to the museum.
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Congratulations on the worst title in 2025 thus far. Like anybody knows what any of those acronyms mean? Come on.
Train geeks like my BIL surely do
Yea it’s one of the titles that you either get or you don’t.
Every FReeper who is a railfan will get it.
Your BIL must know what “the Q” is. My grandpa retired from the Q. It ran through my backyard.
Original titles shouldn't be changed on FreeRepublic. Parenthetical text can be added.
BNSF Donates Historic SD70MAC (locomotive) to IRM (Illinoia Railway Museum)
It’s major news in the IRM Facebook group. More important to the membership than the annual Thomas The Train visit.
FR Commandment #1: Thou shalt not read the original article...or sometimes even the excerpt.
FR Commandment #2: Thou shalt not change or modify the original article title.
The Burlington Northern - Santa Fe (”BNSF”) is the main rail operator here in North Idaho. The Rathdum Prairie and Purcell Trench are covered in rail lines. Yesterday I got stopped THREE times by their trains, two of those times were by the same train where the tracks run diagonally to the roads. So I see “BNSF” all the time on their engines and freight cars and knew this was a railroad post.
We lived in Silicon Valley for decades. There we knew QQQ.
Lol. I read it as they donated a Mac to IBM
I got to visit 5 railroad museums... Illinois Railroad Museum, the National Railroad Museum in Green Bay, The railroad museum in St.Louis and Steamtown in PA..
Of course, I love trains...got a railroad museum on my model railroad layout..
So you learned something today, right?
If you walked into a random busy area with a large crowd and starting asking people what the three acronyms met how long would it take until you found someone who could name all three:
1. One minute
2. One hour
3. One day
4. One month
5. One year
6. Until the sun goes supernova and the Earth is destroyed
Lol.
IYKYK
Actually #1 if I were at a train show. otherwise
I’ll take “Until the sun goes supernova and the Earth is destroyed” for $500. Alex.
Hard to believe that those units are considered old.
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