Tier 4 Single Engine GP Locos (UP)

[SeeYou190]

Metro Red Line

Do you mean "Stage 5" as a more advanced level of emissions standards, or "Stage 5" as a replacement of the "Tier 4" designation, meaning the same regulation rating with a different name to be compatible with international standards?

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For North America the change from "Tier 4" to "Stage 5" will be almost invisible. To meet the new regulation will not require any additional exhaust aftertreatment hardware, changes to current fuel injection systems, or more complicated engine control systems. The changes will almost be entirely in the programming of the engine control modules.

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There might be two additional sensors required, but I do not have a clear answer on this requirement yet.

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The big excitement of "Stage 5" is that it is almost a universally excepted standard, so it eliminates all kinds of needs for regulations/legislation/certification for new products. It makes it much easier for manufacturers of all kinds of equipment to be compliant in all markets.

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-Kevin

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[Metro Red Line]

SeeYou190

"Tier 4" is about to be replaced by "Stage 5" for commercial engine applications.

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This is an international emission standard uniting the regulations between North America and the European Union among others.

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These are good times for everything that breathes.

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-Kevin

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Do you mean "Stage 5" as a more advanced level of emissions standards, or "Stage 5" as a replacement of the "Tier 4" designation, meaning the same regulation rating with a different name to be compatible with international standards?

[M636C]

peahrens

This came via a Facebook item.  I don't know how to ID the exact prior GP-x type, past the GP9...before the GP30?

https://www.up.com/aboutup/community/inside_track/repowered-switchers-11-16-2018.htm?fbclid=IwAR3HPxmVQGSg9Wluw3Wr1oLVAorRIxpuqp1VnCHnm2bJRuCfsnGE68mQ0qg

 

The complete locomotive illustrated in the UP link was a GP38, GP39 or GP40 (or dash2).

It is identifiable by the number of handrail stanchions (10)

A GP28. GP30, or GP35 would have nine stanchions.

A GP7, GP9, GP18 or GP20 would have eight stanchions.

I don't think any UP Genset units retained the original EMD cab so the statement about the loco illustrated being rebuilt is probably wrong.

Peter

[OT Dean]

7j43k

Not here in Northern California, right now.

 

 

Ed

 

A friend of mine, also a model railroader, had a son in the Marine Corps, stationed at an air base in CA, back in the '70s.  When he visited him, he took lots of photos, but when he got home and had the film developed, he thought the shop had screwed them up somehow: "Look, the sky's tan, Deano!"  And then he realized everything else in the photos had correct coloration.  He looked at me, dumbfounded.  "Imagine, we were breathing that!" Our city had a paper mill, so we were used to "baked beans" or "coffee," but at least you couldn't see it, too!

 

[7j43k]

Not here in Northern California, right now.

 

 

Ed

[SeeYou190]

"Tier 4" is about to be replaced by "Stage 5" for commercial engine applications.

.

This is an international emission standard uniting the regulations between North America and the European Union among others.

.

These are good times for everything that breathes.

.

-Kevin

.

[peahrens]

This came via a Facebook item.  I don't know how to ID the exact prior GP-x type, past the GP9...before the GP30?

https://www.up.com/aboutup/community/inside_track/repowered-switchers-11-16-2018.htm?fbclid=IwAR3HPxmVQGSg9Wluw3Wr1oLVAorRIxpuqp1VnCHnm2bJRuCfsnGE68mQ0qg