EMD with "Cat Inside" F125

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BDA Chief Commissioner

Location: Sydney
EMD is making a pass locomotive Stateside with a Cat C175-20 engine of around 4700 Hp . These are higher revving diesels than EMDs and GEs usual offerings and who knows if they could end up in freight units . Their alternators are higher speed ones as well . They need the urea injection crap to meet Tier 4 emissions standards but not every country has that .
Handy number that 4700 Hp , bit more than a 710 16 or a Gevo 12 and possibly not that hard to package in a locomotive body/frame .
I'm not sure if high speed diesels are long term reliable in freight service though the Tier 4 and beyond standards should tell the story .
 
SantaFe5811 Station Staff

Location: Perth, Western Australia
Urea?  Goodo!  Something else to cart around and make sure it's filled up when refueling.    Metrolink (1st confirmed order) are going to need to install Urea junk at Taylor Yard, Oceanside, San Bernardino & Antolope Valley area.

Word on the street from the guys with the horse (NS) down at Chattanooga who are experimenting with a 3,600hp CAT engined loco; the PR43C is 'good luck'.   They spend more time getting work done to them than they are on the road.   In fact, 4001 just came back from a heavy rebuild at the Progress Rail shops in Georgia (A TasRail PR30L was also in the consist).

But who knows, these F125's could prove themselves as effective locomotives, but we are struggling to see a successful application of the CAT engine into rail.
 
12CSVT Chief Commissioner

Location: Drowning in accreditation red tape!
Urea! So locos will smell like stale wee or ammonia rather than diesel! Nice.....

By the way, the Tasrail locos are PR22L

Caterpillars seem to have done okay in Australia in the Walkers diesel hydraulics. They did fine in Tas. on heavy ore trains on the EBR. But of course, they were much smaller engines. Scaling up in power and rpms can be a real challenge.
 
SantaFe5811 Station Staff

Location: Perth, Western Australia
Thanks Steve!    

I've heard the problems with CAT locos is between the engine & alternator.   Not knowing too much about hydraulic locos, do they even have an alternator?
 
DFB7307 Locomotive Driver

Location: Too far away from the railway line!
They have had cat loco's New Zealand, and the DH and DJ are both still in service, with no more issues than the GE and GM stuff. Only small cat engines tho, D398 from memory, around 1000 hp.
Cheers, Anthony.
 
12CSVT Chief Commissioner

Location: Drowning in accreditation red tape!
SF5811 - The only generators / alternators you would find on diesel hydraulics would be small auxiliary units for power for lighting, instrumentation, battery charging etc. (like on a truck).

DFB7307 - By the DJ's being still in service - that should probably be specified as meaning only with Taeri Gorge Rlwy, as opposed to Kiwirail generally. Of course the DH's are still happily beavering away for KiwiRail. I think the Cat D398's also power the 'Silver Ferns' do they not?

Whilst on the subject, when the majority of the 'DJ's were withdrawn by NZR, the EBR obtained a number of spare D398s for their '11' class, then still in service. I'm not sure whether that precipitated the re-engining of the '10' class from Paxman to Cat, or that happened before.
 
Z1NorthernProgress2110 Chief Commissioner

Location: Burnie, Tasmania
Steve i believe the 10 class were re engined from ex NSW 70 class shunters.
 
BDA Chief Commissioner

Location: Sydney
Other diesel engine manufacturers are going the same way like Cummins with their QSK 95 and 120 .


http://www.youtube.com/watch?v=lgBsEfUpadQ

Actual dimensions and weights would be interesting to compare with current 710s and GEs in the 4500-5000 hp range .
 
M636C Minister for Railways

Steve i believe the 10 class were re engined from ex NSW 70 class shunters.
- Z1NorthernProgress2110
The NSW 70 class had the much smaller D397 engine.

The 70 class did however have the same Voith L37z hydraulic transmission, and I suspect that is what was taken from the 70 class.

The NZ DJ class did have the D398 engine and some of those might have come from NZ.

I think 21 also was fitted with a D398 - it had the same engine and transmission as the 10 class and it gained the same twin exhausts as the 10 class at about the same time.

M636C
 
M636C Minister for Railways

Actual dimensions and weights would be interesting to compare with current 710s and GEs in the 4500-5000 hp range .
- BDA
The link on the other thread (by JMT) gives a drawing of the SD90MAC fitted with the QSK 95.
The hood is much taller than the original to allow for the aftertreatment equipment above the engine, but the engine itself (not meeting emission requirements) is both shorter and lower than a 16-710G3 or a 265 H engine.

While Metrolink are talking about using the QSK 95, GO Transit in Toronto are fitting TWO QSK60s, 5400 HP total, instead although they initially proposed to use the QSK 95 in place of the 16-710 G3B in their MP40 locomotives.

A single QSK 60 is fitted in the lower powered CBH locomotives built by Motive Power, with a QSK 78 in the higher powered units.
A quick check of CM3301 in Goulburn would show how big those engines are, and as lower powered versions of the same engine family, would give an idea of reliability.

M636C
 
12CSVT Chief Commissioner

Location: Drowning in accreditation red tape!
Steve i believe the 10 class were re engined from ex NSW 70 class shunters.
- Z1NorthernProgress2110

Well EBR did buy one '70' class - 7003 for spares, which would have released one D397, but the others came from the 'DJ's, I'm pretty sure.
 
12CSVT Chief Commissioner

Location: Drowning in accreditation red tape!
I think 21 also was fitted with a D398 - it had the same engine and transmission as the 10 class and it gained the same twin exhausts as the 10 class at about the same time.

M636C
- M636C

Nope, EBR 21 still has it's Paxman. DVR has a spare Paxman (ex '10' class) in storage for it as well.
 
i_know_nothing Train Controller

21 has a Paxman (12YHXL from a 10 class) but not its original type (12RPHXL)
 

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