Tier 4 SD70ACe Revealed

Cool paint job on the locomotive. The locomotive has a boxy mid-section just like the demo units that eventually evolved into ET44AC's and ET44C4's. It also has a new 12-cylinder 4400 horsepower prime mover that displaces 1010 cubic inches per cylinder. Sounds like CAT/EMD is taking a page out of GE's book. 

OK MTH. Are you paying attention??? I need another SD70ACe like I need a hole in the head, but if you build it, they (and I) will buy.

Agree Matt! (Lionel and MTH?, to sell these they need to be correct tooling)

I hope it's a success for EMD/Progress Rail/Caterpillar. Maybe they can capture back some lost market share. It would be good for everyone involved if GE has a strong competitor to challenge it.

It won't sound like an EMD though. The 12 cylinder 12-1010-J prime mover is a 4-stroke (update of the 265H engine used in the 6000 HP SD90MACs) so it will chug.

I wonder if the familiar EMD turbo whine will still be a component of the overall sound. I hope so.

The 1010 stands for the cubic inch displacement of one cylinder, as has been EMD's practice since the 567. By way of comparison, the GEVO's V-12 has a 959 cubic inch displacement per cylinder.

Count me in!  

Good news for EMD. Which RR will place the first order ??

Looks I need to add some green to my blue and yellow consist. MTH, get on it

Not even close.  Baldwin's VO engine had a displacement of 1,979 cu. in. per cylinder.

Stuart

Slick! 

I hope the unit is successful. Let the competition resume!

Thanks for this information. Looks like EMD is going back to the 5-sided front windshield like the windshield on the SD70MAC. Also from the YouTube video on the Progress Rail website, the radial trucks on this Tier IV SD70 appear as if they were welded together unlike the cast HTC-R radial trucks on the earlier SD70ACe.

These are just my opinion,

Thanks,

Naveen Rajan

The cab looks reminiscent to the earlier widecab SD60, SD70, SD80, and SD90.

You mean "wide nose", as the cabs were/are not wider than any other cab EMD offered.

I don't see a hump. Just a small transition where the engine bay starts.

Where do you see 5-sides?

Edit: Oh, you mean edges, sorry. I was thinking 3D shaped.

Yes i noticed that front widows look different and the front-end up on top on the side's. still looks good

If EMD keeps copying GE's designs they may have a winner. Imitation is the sincerest form of flattery.

That doesnt look anything like the GE tier 4 loco

Exactly WHICH designs has EMD "copied"?

EMD "copying GE"  ?  You need glasses, I think, although the new styling isn't as nice as the older but they have a lot more to stuff in to an engine shell today. Plus, make it accessible for maintenance.

I've heard it called both.

To be honest, I think the front end kind of looks like a GE as well at first glance.

That still doesn't mean that "wide cab" is correct, as the cab isn't any wider.

In my opinion and in my opinion the EMD Tier IV looks similar to the pre-production GE Tier IV locomotive which had the large hump. The large radiator and carbody design appear to be copied from GE. At first glance it even looks like a GE, in my opinion. You can argue the fact all you want seeing is believing........ 

Actually, "appearances" don't mean much. Economies of manufacturing is what is important, in order to meet the customer's requirements at a fair price.

I think? the 12 cylinder 265H has been in EMD's SD89MAC (not a production locomotive) - Hot Water is that correct?

I guess this is the end of 710s in brand new lcomotives...

Glad to see the 'porkchop' windows back...

According to the information on the Progress Rail website, the SD70ACe-T4 is supposed to be 76’8” long, around 2’5” longer than the earlier SD70ACe, weighs more (428,000 lbs vs 420,000 lbs), has a higher maximum speed rating (75 mph vs 70 mph), has more Tractive HP (4400 vs 4300), has more starting tractive effort (200,000 lbs vs 189,000 lbs), more continuous tractive effort (175,000 lbs vs 155,000 lbs).

These are just my opinion,

Thanks,         

Naveen Rajan

Paul: it is a friendly discussion, not an argument. Ge and EMD have revised their styling the last few years as things change.

Spectacular.................looks fantastic!

It kinda looks like how the SD70ACe would have been made to look during the 1990's. What I mean is that it looks like the SD70MAC and SD90MAC H-2's love child.

That factory paint scheme doesn't do much for me. Would like to see it in UP colors or maybe NS.

I would have to agree.

Exactly!

Thanks for the explanation, Jack. Will this engine therefore experience the sort of turbo lag which the GE units do?

Found another video on YouTube from the Railway Age magazine with information on the SD70ACe-T4 from a Progress Rail employee who among other things highlights the changes on the Tier IV locomotive from the earlier SD70ACe.

These are just my opinion,

Thanks,

Naveen Rajan