![]() | This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||||||
|
There are stronger electrical engines in operation today, e.g. on the Swedish Iron Ore Line from Kiruna to Narvik. So obviously the statement is incorrect in its current form. At most it is the strongest diesel engine ever built. — Preceding unsigned comment added by 93.244.142.29 ( talk) 08:16, 20 August 2017 (UTC)
The DDA-40-X Model Designation was created by EMD and used in officially sanctioned maintenance and operating manuals. For example, I have in my possession a 1970 copy of the DDA-40-X Maintenance Manual. However, the UPRR Loco Dept. has preferred to use the DD40-X model designation in all official literature and maintenance records since they began to arrive on the property in 1969. Electrical prints, annual diagram books and LMIs (Locomotive Maintenance Instructions) throughout the 70s and 80s all use the DD40-X designation. This model designation is still in use at UPRR; the maintenance records and UMLER file for the UP#6936 continue to use the DD40-X designation. Sunktanka ( T: C) 05:48, 3 January 2007 (UTC)
Where there ever any DD40's numbered between 70-80? Because i've seen a model version and its either number #78 or #76. User:Trainboy 02:31, 7 March 2008 (UTC)
Did any other rail-road use this double engine technology?. User:Trainlover 02:34, 5 March 2008 (UTC)
I changed the article pic to one that more clearly shows the outrageous length of the unit. Ken ( talk) 18:46, 18 September 2008 (UTC)
From every source I have seen, EMD called these locomotives DD40AX, not DDA40X. Bclough ( talk) 01:57, 20 September 2008 (UTC)
I recently took part in a discussion on the Model Railroader (magazine) Forums. A forum member linked this article as a source for the "Big Jack" nickname of the DDA40X. A retired UP employee on the forums stated that he had never heard of that nickname being applied to the locomotive. I investigated the linked resource material. No reference was made to "Big Jack" as being a nickname. As a result I added a citation needed after the "Big Jack". I could not figure out how to edit the side bar on the right, which also contains this info. Robert Almart ( talk) 20:23, 13 February 2017 (UTC)
Is there no source for the info about how many are left and where they are located. No date on that info either 71.47.103.160 ( talk) 15:24, 18 July 2018 (UTC)
![]() | This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||||||
|
There are stronger electrical engines in operation today, e.g. on the Swedish Iron Ore Line from Kiruna to Narvik. So obviously the statement is incorrect in its current form. At most it is the strongest diesel engine ever built. — Preceding unsigned comment added by 93.244.142.29 ( talk) 08:16, 20 August 2017 (UTC)
The DDA-40-X Model Designation was created by EMD and used in officially sanctioned maintenance and operating manuals. For example, I have in my possession a 1970 copy of the DDA-40-X Maintenance Manual. However, the UPRR Loco Dept. has preferred to use the DD40-X model designation in all official literature and maintenance records since they began to arrive on the property in 1969. Electrical prints, annual diagram books and LMIs (Locomotive Maintenance Instructions) throughout the 70s and 80s all use the DD40-X designation. This model designation is still in use at UPRR; the maintenance records and UMLER file for the UP#6936 continue to use the DD40-X designation. Sunktanka ( T: C) 05:48, 3 January 2007 (UTC)
Where there ever any DD40's numbered between 70-80? Because i've seen a model version and its either number #78 or #76. User:Trainboy 02:31, 7 March 2008 (UTC)
Did any other rail-road use this double engine technology?. User:Trainlover 02:34, 5 March 2008 (UTC)
I changed the article pic to one that more clearly shows the outrageous length of the unit. Ken ( talk) 18:46, 18 September 2008 (UTC)
From every source I have seen, EMD called these locomotives DD40AX, not DDA40X. Bclough ( talk) 01:57, 20 September 2008 (UTC)
I recently took part in a discussion on the Model Railroader (magazine) Forums. A forum member linked this article as a source for the "Big Jack" nickname of the DDA40X. A retired UP employee on the forums stated that he had never heard of that nickname being applied to the locomotive. I investigated the linked resource material. No reference was made to "Big Jack" as being a nickname. As a result I added a citation needed after the "Big Jack". I could not figure out how to edit the side bar on the right, which also contains this info. Robert Almart ( talk) 20:23, 13 February 2017 (UTC)
Is there no source for the info about how many are left and where they are located. No date on that info either 71.47.103.160 ( talk) 15:24, 18 July 2018 (UTC)