Tier 4 Evolution Series prototype unveiled

Discussion of General Electric locomotive technology. Current official information can be found here: www.getransportation.com.

Moderators: AMTK84, MEC407

Allen Hazen
Posts: 2494
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: Tier 4 Evolution Series prototype unveiled

Post by Allen Hazen »

Hummmmm…..
Looking t the first photo again, it doesn't look like an appearance that could be given by fixed slats. May the slats are movable, and in the photo the ones on the right are open and those on the left closed?

I ***think*** I remember that the Tier4 version of the GEVO-12 engine uses two turbochargers. The emissions control technology involves recycling some of the exhaust gas: perhaps this means that the exhaust opening can be closed (partially or entirely) to redirect the exhaust? And the flow of air and exhaust is controlled separately for the two turbos? This is speculation, but it would account for having control slats like those I suggest.

User avatar
MEC407
Posts: 10993
Joined: Thu Mar 11, 2004 8:15 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by MEC407 »

Photo by Paul Keogh:

http://rrpicturearchives.net/pictures/1 ... C_0501.JPG" onclick="window.open(this.href);return false;

Hard to see in the picture, but the model designation is "ET44C4"
MEC407
Moderator:
Pan Am Railways — Boston & Maine/Maine Central — Delaware & Hudson
Central Maine & Quebec/Montreal, Maine & Atlantic/Bangor & Aroostook
Providence & Worcester — New England — GE Locomotives

User avatar
NorthWest
Posts: 512
Joined: Tue Jul 15, 2014 1:54 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by NorthWest »

Interesting, thanks for posting. Glad they shortened the EGR 'hump', but it still will take some getting used to.
Regarding the 'T', I am not surprised that GE is altering the naming convention for Tier IV units. They are significantly different from earlier versions.

Allen Hazen
Posts: 2494
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: Tier 4 Evolution Series prototype unveiled

Post by Allen Hazen »

ET44C4…
Now, what does each character stand for?
The final 4 and the C are easy: four powered axles, six-wheel trucks.
The E stands for "Evolution Series," with T4 -- that's easy, it means Tier IV -- replacing the S.
44 stands for power in hundreds of hp.
So… ET444C4.
Shortened by writing two of the 4s in the same place!
(Grin!)

User avatar
MEC407
Posts: 10993
Joined: Thu Mar 11, 2004 8:15 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by MEC407 »

Photo by Matthew Griffin:

http://www.railpictures.net/viewphoto.php?id=532695" onclick="window.open(this.href);return false;
MEC407
Moderator:
Pan Am Railways — Boston & Maine/Maine Central — Delaware & Hudson
Central Maine & Quebec/Montreal, Maine & Atlantic/Bangor & Aroostook
Providence & Worcester — New England — GE Locomotives

Allen Hazen
Posts: 2494
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: Tier 4 Evolution Series prototype unveiled

Post by Allen Hazen »

Thanks!
Typing ES44AC into the locomotive type spot and GE leasing (GECX) into the "railroad" spot in the railpictures search function gets a bunch of photos of these blue units… but not many taken from a high enough angle (wanted: rail photographer on bridge over tracks!) to help us with the puzzle about the exhaust stack.

User avatar
MEC407
Posts: 10993
Joined: Thu Mar 11, 2004 8:15 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by MEC407 »

Here are the best ones I could find:

http://rrpicturearchives.net/showPictur ... id=4107817" onclick="window.open(this.href);return false;

http://rrpicturearchives.net/showPictur ... id=4124249" onclick="window.open(this.href);return false;

http://rrpicturearchives.net/showPictur ... id=4160298" onclick="window.open(this.href);return false;

http://rrpicturearchives.net/showPictur ... id=4059067" onclick="window.open(this.href);return false;

Without a doubt, the stack is shifted to the engineer's side! And I'm not really seeing anything that looks like a mechanism to uncover a second stack.


And here's a builder's sticker, just for fun ("ES44A6" on this one):

http://rrpicturearchives.net/showPictur ... id=4165027" onclick="window.open(this.href);return false;
MEC407
Moderator:
Pan Am Railways — Boston & Maine/Maine Central — Delaware & Hudson
Central Maine & Quebec/Montreal, Maine & Atlantic/Bangor & Aroostook
Providence & Worcester — New England — GE Locomotives

Allen Hazen
Posts: 2494
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: Tier 4 Evolution Series prototype unveiled

Post by Allen Hazen »

MEC407--
Thanks! Those -- particularly the first and last -- are the clearest views I've seen, and look pretty conclusive: you were right, I was wrong (I was, I think, looking at the wrong roof-top feature in one of the seriously foreshortened views): stack to one side!

User avatar
MEC407
Posts: 10993
Joined: Thu Mar 11, 2004 8:15 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by MEC407 »

First CN Tier 4 ET44AC in action — video by David Othen:

https://www.youtube.com/watch?v=q8qJaAzNBdY" onclick="window.open(this.href);return false;
MEC407
Moderator:
Pan Am Railways — Boston & Maine/Maine Central — Delaware & Hudson
Central Maine & Quebec/Montreal, Maine & Atlantic/Bangor & Aroostook
Providence & Worcester — New England — GE Locomotives

Allen Hazen
Posts: 2494
Joined: Fri Mar 12, 2004 10:14 pm
Location: Edmonton, Canada (formerly Melbourne, Australia)

Re: Tier 4 Evolution Series prototype unveiled

Post by Allen Hazen »

Not often that one sees a locomotive that clean and shiny in service!
Thanks for linking!
---
One nice view of a design difference between the ES and ET4 series. About three times (one is at about 7:79 or 8 minutes in) we see the locomotive consist pass us and get a view of the rear end of the Tier 4 leader and the trailing ES44AC: the pitch of the radiator housing is much steeper on the new unit (I assume from the need to fit bigger radiators into the loading gauge).

rr503
Posts: 718
Joined: Sat May 02, 2015 4:13 pm
Location: North by Northwest

Re: Tier 4 Evolution Series prototype unveiled

Post by rr503 »

Who is getting them?
I'm assuming CSX, UP, BNSF?

User avatar
MEC407
Posts: 10993
Joined: Thu Mar 11, 2004 8:15 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by MEC407 »

Per Sean Graham-White, the following railroads will receive ET44ACs this year (or in the case of BNSF, ET44C4s):

BNSF, 161 units
CN, 39 units
CSX, 125 units
UP, 100 units

Expect many more next year as well.
MEC407
Moderator:
Pan Am Railways — Boston & Maine/Maine Central — Delaware & Hudson
Central Maine & Quebec/Montreal, Maine & Atlantic/Bangor & Aroostook
Providence & Worcester — New England — GE Locomotives

rr503
Posts: 718
Joined: Sat May 02, 2015 4:13 pm
Location: North by Northwest

Re: Tier 4 Evolution Series prototype unveiled

Post by rr503 »

Yup!
All of BNSF's order will be C4s?

User avatar
MEC407
Posts: 10993
Joined: Thu Mar 11, 2004 8:15 pm

Re: Tier 4 Evolution Series prototype unveiled

Post by MEC407 »

That's what I gathered from Mr. Graham-White's message. His information is usually very accurate.
MEC407
Moderator:
Pan Am Railways — Boston & Maine/Maine Central — Delaware & Hudson
Central Maine & Quebec/Montreal, Maine & Atlantic/Bangor & Aroostook
Providence & Worcester — New England — GE Locomotives

rr503
Posts: 718
Joined: Sat May 02, 2015 4:13 pm
Location: North by Northwest

Re: Tier 4 Evolution Series prototype unveiled

Post by rr503 »

CSX is beginning testing
http://trn.trains.com/news/news-wire/20 ... ne-testing" onclick="window.open(this.href);return false;
Quote:
Sources close to the railroad tell Trains News Wire the locomotive is en route to Erwin for testing on the railroad’s former Clinchfield territory. The locomotive will be used in heavy haul service on the railroad’s Blue Ridge Subdivision between Erwin and Spartanburg, S.C.

Return to “General Electric”