EMD tier 4

That's gonna take some getting used to...

Rusty

I found this on it.  SD59MX, yes it is different.

https://www.uprr.com/newsinfo/...12/0822_up9900.shtml

Joe,

That is not a production Tier IV locomotive like the GE ET44AC or C4 or AH. It was an experimental platform that had urea aftertreatment system that the major railroads do not want for long-range production models. This prototype is over 3 years old & if I remember correctly, the retrofit was subsidized by the California Air Resources Board. While this was intended to assist in developing a Tier IV capable locomotive I didn’t hear much about this model since the initial publicity & from the rumors I hear at work, my employer might not be using this approach for the actual Tier IV capable locomotive.

These are just my opinion,

Thanks,

Naveen Rajan

Thank you Naveen!

I thought I could find some pictures on a search. There was something in the new Trains mag about some new tier 4 EMD demos going out for trials? When that engine popped up on a search, I thought it was something new!

It said later this year so I thought I could find out more. I think this is one that is being modified?

http://www.rrpicturearchives.n...ture.aspx?id=2340700

http://www.rrpicturearchives.n...ture.aspx?id=3970007

Joe,

I had also seen a similar picture in an internal communication at work but to the extent I still remember it, that EMDX locomotive (might have been the 92 from the above picture) was a test bed for the EPA Tier IV compliant, Caterpillar C175, 20-cylinder four-stroke engine, with urea aftertreatment intended to be used in our F125 passenger locomotive for Metrolink. The middle portion of the long hood on the EMDX 92 seems as wide as the following photos from Metrolink’s Facebook page.

These are just my opinion,

Thanks,

Naveen Rajan

Hey Joe, I think EMD already missed the boat on a Tier IV locomotive. Also, EMD finally came out with a C4 comparable truck after GE did about a thousand locomotives ago.

paul,

EMD didn't miss the boat. The regulations allowed for extensions of the previous tiers. That provided more time for development and allowed the railroads more use of their existing locomotives.

Ease of engine maintenance and the costs have always been better with an EMD from what I gather from the railroader's posts.

Taking the time to maintain those benefits when developing a new locomotive is not missing the boat.

I don't know what a "C4 comparable truck" is, but I believe you will find that the EMD HTC-R radial/steerable truck came out well prior to GE having a "steerable" type truck. 

 Thanks all for the info!

It's interesting to me to see where these manufacturers are in developing new stuff.

I don't know if I'll be able to make my own F125 in G scale! That face looks tuff to replicate. Maybe some day I'll try.

Carl and Jack, we can go back and forth on the innovations of EMD and GE all day but the fact of the matter is GE, having sold over five thousand GEVOs, is ready with a Tier IV locomotive and EMD is not. 

I'm not disputing that fact. What I asked about was your specific reference to a "C4 comparable truck". What does any locomotive truck have to do with complying with Federal Emissions requirements?

Joe,

Here as some images of a 1:25 scale model of the EPA Tier IV compliant, C175, 20-cylinder four-stroke engine similar to the engine in the EMD F125.

These are just my opinion,

Thanks,

Naveen Rajan

@ Hotwater If you read my post correctly, I made no reference to emissions, just the fact that EMD made a similar design (C4 comparable) after GE did, with out straying Joe's original topic too much.

The ET44AC and ET44C4 may just be getting delivered.(Tier IV) Only 4 rr's ordered some. So, there's not 5,000 out there. ES, (Tier III), yes.

We'll have to ask laidoffsick what the guys think of the ES44AC (Tier III) in terms of maintenance.

The truck that you are referring to (C4) is a computer controlled traction system truck. Power less motors and maintaining tractive force of six motors would be an emissions reducer. Again, have to ask the guys that drive 'em if it works.

Carl, again, please read what I said "over five thousand GEVOs" NOT ES44C-4s. End of story. Thank you.

The EMD design was similar to a Lionel H24-66 Train Master in that the two interior axles were not powered; I guess that makes it a B1+1B wheel arrangement. EMD called it a SD70Ace-P4. BNSF tried them out, but did not follow up with orders as far as I know while the ES(ET)44C4 has racked up 1400 orders from BNSF. 

The last I heard is that EMD is having major issues producing a Tier 4 engine and is working on getting one presented in 2017. I wish EMD good luck.

Regards,

Swafford 

Naveen,

 "..... EMD is working hard on it's Tier IV freight loco....."

"to release five demonstrators on a western Class I RR later this year." .....

It also talks about that EMDX92 as a Tier IV test bed.

 The article is very short and first describes GE's efforts that also were in another post here on the forum. It left me wanting to know more about EMD, with only a single paragraph like a teaser!

 Having your posts here, is more info than I could hope for! Thanks again to all.

  I like both brands as I am just a train modeler. I lean towards EMD, as they weren't represented in modern G scale from MTH. That being said, MTH only released a GE Dash 8 in both narrow nose, and wide cabs. I crave to have modern models in G scale period. So I research, and then build my own. I have done only two so far. Both are EMD's. The guys here in O scale, don't realize how lucky they are. They only see what has been done in smaller scales.

 When Hot Water chimes in or any of the real train guys, and no matter how loudly, I shut up and listen. I'm not about to make a statement from the hip, that may be not fully accurate.

Not end of story. GEVO is a misnomer. Tell me what it is if not the GE Evolution Series which began production in 2005. They are identified by ES in the model name. Do your homework.