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I had seen photos of the dark-blue pre-production GE Tier IV compliant locomotives online but just saw some pictures of the production version of this locomotive – apparently a C4 version (4 axles with traction motors, in a 6-axle locomotive) for BNSF.

http://www.rrpicturearchives.n...cture.aspx?id=208714

 

GE TIER IV production locomotive

These are just my opinion,

Thanks,

Naveen Rajan

Last edited by naveenrajan
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What is the reason for the C4 truck, does the reduction in traction motors enable the use of a smaller prime mover and generator set to allow more fuel efficiency? Doesn't the locomotive lose 1/3 of the reactive effort by doing this? So then would these locos be restricted to areas with little grades?

To extent I understood the C4 locomotives, it was supposed to replace the DC traction locomotives that GE used to offer. The C4 has the same engine, AC traction motors & every other major component, as the ES44AC so is convenient to maintenance personnel who are used to GE locomotives. But it has less starting tractive effort compared to the ES44AC & so is used in moving most trains except mineral trains like coal or taconite. 2 less traction motors might make it cheaper than the ES44AC also, probably closer to the price of the ES44DC that had 6 DC traction motors. The truck while looking similar to a typical GE Hi-Ad truck has no traction motor on the center axle. But the center axle has linkages that raise the center axle to put more weight on the axles with traction motors to increase the traction when needed, or lower it to evenly distribute the weight across all axles. Here is link to just 1 of the GE patents that explain the workings of the linkages on this truck.

https://www.google.com/patents/US20100175581

In central Illinois I have seen ES44AC on coal trains & ES44C4 on every other kind of train like mixed freight, intermodal & oil.

These are just my opinion,

Thanks,

Naveen Rajan

 
Originally Posted by Matt Makens:
What is the reason for the C4 truck, does the reduction in traction motors enable the use of a smaller prime mover and generator set to allow more fuel efficiency? Doesn't the locomotive lose 1/3 of the reactive effort by doing this? So then would these locos be restricted to areas with little grades?

 

Last edited by naveenrajan

So far BNSF has been the main customer for these ES44C4. The few GE Evolution locomotives that Florida East Coast recently purchased were all ES44C4. I remember going through the Locomotive annul magazine published by Trains & it appears like all the GE locomotives that BNSF ordered for each of the last maybe 5 years (can’t remember the exact number) were all ES44C4. BNSF might not have bought a new ES44AC since 2009. The newer ES44AC locomotives on their coal or taconite trains seem to be leased units from CIT leasing, in addition to their older ES44AC, AC4400CW, SD70MAC & the newer SD70ACe.

I have been seeing the ES44C4 for the last 4 years at the annual Galesburg Railroad days. The public are allowed to climb certain parts of the locomotive & take pictures seating in the engineer’s seat. There is also a GE employee (one of the around 50 GE service engineers who work on site at the BNSF Galesburg shop) who answer questions, so learnt much about this locomotive from them.

These are just my opinion,

Thanks,

Naveen Rajan

Last edited by naveenrajan
Originally Posted by naveenrajan:

. . . The truck while looking similar to a typical GE Hi-Ad truck has no traction motor on the center axle. But the center axle has linkages that raise the center axle to put more weight on the axles with traction motors to increase the traction when needed, or lower it to evenly distribute the weight across all axles.

BNSF has a number of units in service with these trucks.  When driving (and pacing trains, of course!) between Clovis and Amarillo on U.S. Highway 60, I have looked over at the trucks and have sometimes seen daylight beneath the center axle.

 

BNSF has hundreds and hundreds of GE's that are similar in appearance, and the roster is not orderly as to numbering, so I have to get out the roster book to know what model I am looking at.  (No, not while driving alongside a train. )  BNSF has a commitment to purchase or lease (I think the number is 300) new GE's annually, even while storing older, less-efficient, locomotives.  Apparently, it is financially advantageous, but, to fully understand that aspect of it requires a professional knowledge of corporate finance and tax practices.

 

An interesting sidebar:  At Erie, GE has its own railroad for testing newly-manufactured locomotives.  However, the new plant at Haslet, Texas, uses the BNSF main track with BNSF crews running the locomotives under the direction of GE's testing crew, who have all kinds of probes and computer connections on the new engines, to check performance of all systems before delivery.

Last edited by Number 90
Originally Posted by Number 90:
 

BNSF has hundreds and hundreds of GE's that are similar in appearance, and the roster is not orderly as to numbering, so I have to get out the roster book to know what model I am looking at.  (No, not while driving alongside a train. )  BNSF has a commitment to purchase or lease (I think the number is 300) new GE's annually, even while storing older, less-efficient, locomotives.  Apparently, it is financially advantageous, but, to fully understand that aspect of it requires a professional knowledge of corporate finance and tax practices.

 

What roster book do you have? I have an older one (2012) by Paul Webster and Paul Withers, but it's becoming outdated and some things no longer match up. I haven't yet seen a newer one. Trains magazine has a roster on it's website, but I don't know how up to date it is? I can't tell them apart without looking in the book.

 

Also, you probably know this already, but I read a couple of articles on fuel usage and getting just a tenth of a mile per gallon more per engine amounts to a massive yearly savings. Forget the numbers, but they were impressive. They may save enough from using less fuel to pay for several of the new engines?

Paul,

ES44C4 is the current (pre Tier IV) version of the GE locomotive that was made until recently. ET44C4 is the newer version of this locomotive that meets the EPA Tier IV emissions requirement for newly built locomotives that went into effect on Jan 1, 2015. Searching online, so far, I have been able to find just 1road number for the ET44C4 – this BNSF 3916, with the earliest photos taken in May of this year.

These are just my opinion,

Thanks,

Naveen Rajan

 
Originally Posted by PAUL ROMANO:

@rtr12 I have the latest Withers publication of the BNSF 2014 roster. There was no mention of the ET44C4 in the text.

 

Joe,

They may look similar but from following online discussions this ET44C4 is 75’ long, a foot longer than the current GE Evolution models. Also the operator’s cab roof seems to have some extra parts on it, maybe for the Positive Train Control equipment. The MTH model I have for the ES44AC has a smaller white antenna box, not the newer box that from these photos appear to cover the entire surface of the roof. Then there is the readily apparent hump & different wing-shaped radiators at the rear of the locomotive.

These are just my opinion,

Thanks,

Naveen Rajan

 
Originally Posted by Engineer-Joe:

Well, .....it looks easier to make a model of!

I like it!

 

Last edited by naveenrajan
Originally Posted by CNtomato:

Not sure if I like the hump in the back, but the radiators looks cool. Does anyone know if EMD has a new design one the way? 

I doubt it.  EMD has big problems right now because their 710 two-stroke diesel engine cannot achieve Tier 4 emissions without using after treatment liquids (urea). and the big railroads don't want to use that system. 

 

Stuart

Originally Posted by CNtomato:

Not sure if I like the hump in the back, but the radiators looks cool. Does anyone know if EMD has a new design one the way? 

EMD was not be able to meet the Tier 4 specs this year. I think Trains Magazine said it would be 2017 before they were going to release a new Tier 4 engine. 

 

(I read the article a few months ago and my memory is not what it used to be, 2017 really seems like a long time. Could have been 2016, but it certainly seems to me like they said 2017?)

Originally Posted by rtr12:
Originally Posted by Number 90:
 

BNSF has hundreds and hundreds of GE's that are similar in appearance, and the roster is not orderly as to numbering, so I have to get out the roster book to know what model I am looking at.  

 

What roster book do you have? I have an older one (2012) by Paul Webster and Paul Withers, but it's becoming outdated and some things no longer match up.

I use the BNSF Locomotive Directory 2013-2014 by Paul Wester and Paul K. Withers, published by Withers Publishing.  I bought it from McMillan Publications.  It does not have any of the new ET GE's in it, as I believe it was published just before ET's began to arrive.

 

In my younger days, I could look at an F7 and tell when it was built by identifying details, but the GE units so common on BNSF have overwhelmed me in sheer numbers, as well as the non-contiguous numbering of various locomotive groups.

Originally Posted by naveenrajan:

Here are some pictures of the current ES44C4 that I took last month at the Galesburg, IL Railroad days that show the linkages around the center axle.

These are just my opinion,

Thanks,

Naveen Rajan

 

20150627_150748 [1024x576)

20150627_151208 [1024x576)

20150627_150652 [1024x576)

20150627_151115 [1024x576)

Things mean something different for different people. ( or whatever the saying is).

These pics, are a modelers dream! Well, at least for me. Shots like this take the guess work out of building this stuff.

 Anyways, Thank you!

Originally Posted by Stuart:
Originally Posted by CNtomato:

Not sure if I like the hump in the back, but the radiators looks cool. Does anyone know if EMD has a new design one the way? 

I doubt it.  EMD has big problems right now because their 710 two-stroke diesel engine cannot achieve Tier 4 emissions without using after treatment liquids (urea). and the big railroads don't want to use that system. 

 

Stuart

 

Originally Posted by rtr12:
Originally Posted by CNtomato:

Not sure if I like the hump in the back, but the radiators looks cool. Does anyone know if EMD has a new design one the way? 

EMD was not be able to meet the Tier 4 specs this year. I think Trains Magazine said it would be 2017 before they were going to release a new Tier 4 engine. 

 

(I read the article a few months ago and my memory is not what it used to be, 2017 really seems like a long time. Could have been 2016, but it certainly seems to me like they said 2017?)

Thanks for the replies . That's too bad, I'll be waiting.

 

Received this from BNSF Media Dept. this morning....................

 

The following inquiry was submitted to BNSF Railway Media Center on
07/20/15
20:14 (1589054):
From : Clint Stewart (clints)
Date : 07/21/15
08:53

Hello Frank,

The best information I have found is E=
Evolution Series and T= Tier 4.
 I hope this information
helps.
-----------------------------------------------------------------------

From
: Frank Swafford
Date : 07/20/15 20:14

Good Day,
I
wondering................. what the acronym ET mean for BNSF on your
new
General Electric ET44C4 diesel locomotives?

Regards,
Frank
Swafford

Originally Posted by Number 90:
Originally Posted by rtr12:
Originally Posted by Number 90:
 

BNSF has hundreds and hundreds of GE's that are similar in appearance, and the roster is not orderly as to numbering, so I have to get out the roster book to know what model I am looking at.  

 

What roster book do you have? I have an older one (2012) by Paul Webster and Paul Withers, but it's becoming outdated and some things no longer match up.

I use the BNSF Locomotive Directory 2013-2014 by Paul Wester and Paul K. Withers, published by Withers Publishing.  I bought it from McMillan Publications.  It does not have any of the new ET GE's in it, as I believe it was published just before ET's began to arrive.

 

In my younger days, I could look at an F7 and tell when it was built by identifying details, but the GE units so common on BNSF have overwhelmed me in sheer numbers, as well as the non-contiguous numbering of various locomotive groups.

Thanks, I have a later version (2011-2012) of the same directory. Guess I need to update. From the dates, it looks like they may update these every 2 years. I have to have the book to figure just about all of them out.

 

With the GE's, I can tell some are different, but not what model each one is. About all I can tell for sure is the SD70ACe's are different in the rear than the GE's so I can tell if it's EMD or GE.

Originally Posted by naveenrajan:

Well just realized that the hump on the production Tier IV Evolution locomotives for BNSF are not as long as humps on the dark blue pre-production units. The exhaust stack on the pre-production versions seem biased towards the operator’s side.

 

These are just my opinion,

Thanks,

Naveen Rajan

 

Thanks for finding and posting these pictures. It looks as if GE found a way to reduce the size of the "bulge" in the middle of the car body. That makes for a much more aesthetically pleasing design.

 

RM

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