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BNSF Dash 9 with strange exhaust stack

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  • Member since
    December, 2001
  • From: Aurora, IL
  • 4,498 posts
BNSF Dash 9 with strange exhaust stack
Posted by eolafan on Friday, March 31, 2017 7:34 PM

Today while "fanning" the BNSF Eola yard I caught a glimpse of a BNSF Dash 9 unit in one consist (could not get a photo as it passed by too quickly).  This unit had a very unusual exhaust stack and was not your typical GE oval stack which typically stick up about a foot from the car body...this one seemed to have a large "box" built around the original stack and seemed to protrude about two feet or more above the roof line of the unit.  Can anybody give me a clue as to what I saw today? Thanks.

Eolafan (a.k.a. Jim)
  • Member since
    September, 2016
  • From: Tennessee, USA
  • 32 posts
Posted by Kielbasa on Friday, March 31, 2017 8:55 PM

Sounds like one of the new Tier 4 ET44s. We just got a bunch of them in the yard the other day and they all have some shrouding around the stack, so much so you can't even see it. The radiator also sticks up quite a bit more than on a Dash 9. A unit number would help if you by chance remember it. 

  • Member since
    January, 2015
  • 839 posts
Posted by kgbw49 on Saturday, April 01, 2017 9:02 AM

A couple of possibilities...

Here is an early series ET44C4 with the "box" around the exhaust stack...it is not necessarily two feet higher than the motor compartment but it is a pronounced step up...

Image result for bnsf 3920

Or perhaps more likely, it was an AC44C4M which is a C44-9W converted from six DC traction motors to four AC traction motors...

Image result for bnsf ac44c4m

Related image

Image result for bnsf ac44c4m

Image result for bnsf ac44c4m

Image result for bnsf ac44c4m

  • Member since
    August, 2004
  • 486 posts
Posted by pajrr on Sunday, April 02, 2017 4:00 AM

It could also be a spark arrestor. Diesels can give off sparks, too.

  • Member since
    December, 2001
  • From: NW Wisconsin
  • 3,600 posts
Posted by beaulieu on Monday, April 03, 2017 10:45 PM

It is quite rare for a turbocharged locomotive to be equipped with a spark arrestor as the turbo is an effective spark arrestor.

  • Member since
    May, 2016
  • 3 posts
Posted by FlightPlan on Monday, April 10, 2017 6:05 PM

We have had several of these in our shop over the last few months. It is just basically a metal box that mounts around the stack to hold a plate over the stack to block it off for storage. Once out of storage they just leave the box in place instead of removing it. A little more sturdy than the vinyl covers we used to use. 

  • Member since
    November, 2015
  • 619 posts
Posted by ATSFGuy on Thursday, May 04, 2017 11:53 AM

Are the Dash 9's still in service or retired?

  • Member since
    March, 2016
  • From: Burbank IL (near Clearing)
  • 9,858 posts
Posted by CSSHEGEWISCH on Thursday, May 04, 2017 12:03 PM

They are still in service.  I see them regularly on the east end of the Transcon, often working with GEVO's and Tier 4's.

The daily commute is part of everyday life but I get two rides a day out of it. Paul
  • Member since
    May, 2013
  • 2,803 posts
Posted by NorthWest on Thursday, May 04, 2017 12:18 PM

A bunch of the 600 series are out of storage, too!

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