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DB HTE Class 66s

ac6000cw

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10 May 2014
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Cambridge, UK
From what I understand the class 60 is a far superior loco for heavy haulage, but the Mirrlees power unit is not as robust as the agricultural EMD.
What is 'agricultural' about the EMD 710 diesel engine? It's a similar design vintage to the Mirrlees unit in the class 60 (and some of the later build 66s meet the tighter stage IIIA emissions requirements).

I’m not qualified to answer that, but it’s a rumour from several drivers at different depots, it may just be that, a rumour.
But have heard many drivers say the 66/6 are not up to the job they have been altered for.
Just changing the gearing won't turn a 66 into a 59 or a 60 - the 66s have lower rated traction motors and alternators than a 59, and the 60s have more advanced per-axle electronic wheelslip control versus the alternator-based (and hence whole-loco) electronic wheelslip control on the 59s and 66s.
 
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Wyrleybart

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What is 'agricultural' about the EMD 710 diesel engine? It's a similar design vintage to the Mirrlees unit in the class 60 (and some of the later build 66s meet the tighter stage IIIA emissions requirements).
Exactly. Just like a farm tractor the EMD power unit just keeps going and going. The reason why John Smith decided to invest in the class 69 project, and why GBRf have got hold of every single 66 they can from Europe
 

TonyW66

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Morecambe
To save me searching, has this programme been cancelled or suspended now ? I read somewhere that DB are not impressed 'so far' with performance etc, but i've not seen anything from DB themselves or reliable info either. Thanks
 

The_Train

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To save me searching, has this programme been cancelled or suspended now ? I read somewhere that DB are not impressed 'so far' with performance etc, but i've not seen anything from DB themselves or reliable info either. Thanks
I think it is just a lot of hearsay at the moment. Until someone spots DB employees digging out the demic 60s from the forest of Toton, things are to be taken with a pinch of salt I think
 

Trainman40083

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I think it is just a lot of hearsay at the moment. Until someone spots DB employees digging out the demic 60s from the forest of Toton, things are to be taken with a pinch of salt I think
One might suspect that IF any class 60s were to be reinstated, then it would be the ones last withdrawn.
 

45076

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Midway, South Derbyshire
I think it is just a lot of hearsay at the moment. Until someone spots DB employees digging out the demic 60s from the forest of Toton, things are to be taken with a pinch of salt I think
I have been told by a DB fitter that it is definitely on the cards, the 66/6 programme has not delivered as expected because the power delivery is not easy to control and the locos slip to easily. 5 class 60's will be reinstated.
 

800001

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Might be worth a thread in speculative thread, unless anyone else knows more factual info, but heard from inside sources at GBRF that they are also now regearing 8 x 66s with option for another 4 to be done, and to be renumbered into 66/6 series.
 

littledude

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21 Nov 2011
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People’s Republic of South Yorkshire
Might be worth a thread in speculative thread, unless anyone else knows more factual info, but heard from inside sources at GBRF that they are also now regearing 8 x 66s with option for another 4 to be done, and to be renumbered into 66/6 series.
This has been on the cards for a long time. The conversion kits were ordered by EMD last summer. Re-numbering is broadly ‘number minus 100’ with a couple of exceptions. I’m sure numbers will be made public soon.
 

ExRes

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One might suspect that IF any class 60s were to be reinstated, then it would be the ones last withdrawn.

Which would be 011/017/024/062/074 which are the only five not to have been tendered for sale, hopefully any return to service for 062 would be strictly conditional on the removal of that hideous mess of vinyl
 

31160

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18 Mar 2018
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Which would be 011/017/024/062/074 which are the only five not to have been tendered for sale, hopefully any return to service for 062 would be strictly conditional on the removal of that hideous mess of vinyl
Fully agreed there sir,it's bloody awful
 

Trainman40083

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Looks like GBRF are also to renumber some 66s into the 66/6 series too. Maybe the title will change from DB to cover the other operators.
 

Dood75

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8 May 2019
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215
First renumber on TOPS of the GB variety...66689 has appeared, which appears to be the ex 66779 as that seems to have disappeared
 

D365

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29 Jun 2012
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Drivers have generally preferred class 60s over class 66s as well.
This doesn’t surprise me. Even putting aside the electronic capability of the 60s, which is unsurpassed by other diesels of its generation, the cab environment is far better.
 

37114

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4 Jul 2019
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437
This doesn’t surprise me. Even putting aside the electronic capability of the 60s, which is unsurpassed by other diesels of its generation, the cab environment is far better.
True. Let's see if rumours of 60062 being out on test soon turn out to be true
 

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