Railroad Forums 

  • EMD LOCO's

  • Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.
Discussion of Electro-Motive locomotive products and technology, past and present. Official web site can be found here: http://www.emdiesels.com/.

Moderator: GOLDEN-ARM

 #506494  by tomjohn
 
Gentlemen I have a question for you all, are there any new EMD'S both six axle and four axle AKA SD and GP other than what EMD has currently produced ?

Tom

 #506590  by GLC 392
 
im sure they would be making a lot of money if they were also making four axled units still.

 #508006  by MEC407
 
GLC 392 wrote:im sure they would be making a lot of money if they were also making four axled units still.
Not necessarily. There is a reason why they stopped building 4-axle units in the first place -- and that reason is because no railroads were buying them. You can't make money from building a product if you don't have any buyers for the product.

 #508101  by trainiax
 
MEC407 is right on this one. There simply isn't a market for new 4-axle freight units--EMD stopped with the GP60 in the 1990s. There are huge numbers of older 4-axle units that still work reliably for secondary jobs, and to a certain extent old 6-axle units are performing the same duties--it's not uncommon to see locomotives like SD40-2's used in yards.

As for new mainline power, all the railroads really need (and want) are DC or AC 6-axle units in the 4000-4500 hp range, which EMD covers with the SD70M-2 and SD70ACe. In the early days of dieselization 6-axle units offered little benefit because their horsepower per axle rating was so low--in other words, they were only of use for low-speed lugging. However, beyond 3000 horsepower, 4-axle units became more geared towards higher-speed service, and with 4000 or more horsepower today there's really no reason to choose 4 axles instead of 6.