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Class 66 types

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Casper

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Hello

I'm also researching the Class 66 at the moment and see there appear to be three types based on the type of engine they received.

12N 710 G3B-EC for UIC I

12N 710 G3B-U2 for UIC II

12N 710 G3B-T2 for Stage IIIA

Platform 5 (British Rail Locomotives and Rolling Stock) only lists them as "standard" and "low emission"

I believe that "Low emission" refers to the Stage IIIA ones. That might be a bit of an assumption.

I also see that other versions are ones that Freightliner changed the motor gear ratio for both their "standard" ones as well as their "low emission" ones.

Would anyone happen to have a list that correlates the locomotive number with which type of engine it has? Seemingly there are 3 types based on the engine?

There is some great information collated by https://www.class66data.net/ but it doesn't mention engine spec in their data.

Any information is most gratefully received

thanks

Casper
 
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RailUK Forums

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hwl

Established Member
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5 Feb 2012
Messages
7,396
Casper said:
Hello

I'm also researching the Class 66 at the moment and see there appear to be three types based on the type of engine they received.

12N 710 G3B-EC for UIC I

12N 710 G3B-U2 for UIC II

12N 710 G3B-T2 for Stage IIIA

Platform 5 (British Rail Locomotives and Rolling Stock) only lists them as "standard" and "low emission"

I believe that "Low emission" refers to the Stage IIIA ones. That might be a bit of an assumption.

I also see that other versions are ones that Freightliner changed the motor gear ratio for both their "standard" ones as well as their "low emission" ones.

Would anyone happen to have a list that correlates the locomotive number with which type of engine it has? Seemingly there are 3 types based on the engine?

There is some great information collated by https://www.class66data.net/ but it doesn't mention engine spec in their data.

Any information is most gratefully received

thanks

Casper
Click to expand...

the platform 5 definition of "low Emission" is confusingly UIC2

There are effectively 8 variations of 66 around with 3 engine varieties leaving the factory but some have been modified since:
UIC1 296 Still in UK [Originally 001-230, 401-410, 501-572, 601-->622 701-->]
1. "Original" UIC1 with no DB stop start (DB GBRF Colas)
2. UIC1 with DB stop start (DB (Circa 140+ locos)
3. UIC1 with FL stop start (FL)
4. UIC 1 regreared for 65mph max with FL stop start (FL)

UIC2 60 Still in UK [3xx-->, 411--> 585-599, 623]
5. Original UIC2 (DRS/GBRF)
6. UIC 2 with FL stop start (FL)
7. UIC 2 regreared for 65mph max with FL stop start (FL) 623

euro 3a 747-779
8. Euro3a (all 31 with GBRf)

GBRf have upgraded a few of their UIC1 with some newer equipment
 
Last edited:
C

Casper

Member
Joined
7 Jan 2018
Messages
35
Wow! Thank you

Is this engine assignment to emission standard therefore correct?

12N 710 G3B-EC for UIC I

12N 710 G3B-U2 for UIC II

12N 710 G3B-T2 for Stage IIIA

I'm very impressed with the assignment you have for loco numbers to emission type. There's considerably less Stage IIIA than I previously thought.

Couple of questions if I may re your reply

I appreciate the 66s seem to move around fleets quite a bit and get renumbered in the process but would you happen to have a list of the original number the loco received and the engine type too?

I'm basing these next questions on the 2018 Platform 5 data:

and your info UIC I: 001-230, 401-410, 501-572, 601-->622 701-->

UIC2 60 Still in UK [3xx-->, 411--> 585-599, 623

Euro 3a 747-779


001-230: All good. Platform 5 lists the next two as 66238 and 66250 which become 66788 and 66789 respectively. 238 and 250 are UIC I as well then?

3xx---> Plat 5 lists just 301-305 (as does https://www.class66data.net/fleet-list.html). All ok. They are therefore UIC II

401-410 isn't listed in the Platform 5 data. It starts 66/4 from 66413.

This list https://www.class66data.net/fleet-list.html doesn't have 66401-410 either

What happened to those 401-410?

411---> would tally with the Platform 5 data listing 66413-66434 which as you say makes them UIC II

501-572, all ok. Your info makes them UIC I

585-599, all ok. Your info makes them UIC II

(what the fate and spec of 573-584)?

601-622, all ok. Your info makes them UIC I

623, your info makes this UIC II

66624 and 66625 are UIC I as well? Is 66625 the highest of the 66/6 numbering?

701--->

Gets a bit confusing here

701-717 are listed by Platform 5 as being "like 66/0" so presumably therefore UIC I?

Plat 5 lists "718-751 as 66/0 except 718-732 and 747-749"

So 718-732 are UIC I? 747-749 are UIC I or Stage IIIA?

so that leaves 733-746 as? it notes them with engine 12N 710 G3B-T2 so therefore UIC II?

I note your point that

Euro 3a 747-779

780-789 -Plat 5 lists as "like 66/0" so presumably UIC I again

"66/8 Standard design as 66/0 - Colas Rail locos" with

66846 (66573)
66847 (66574)
66848 (66575)
66849 (66576)
66850 (66577)

So UIC I and that part answers the above 573-584 query!

Just 66578-584 missing

66/9

Freightliner

66951
66952
Both "as 66/3" so UIC II then?

66953
66954
66955
66956
66957

These are also listed as Freightliner but 669xx since the 66/5 list was full and they are 66/9 and "as 66/5" which are "as 66/0" so presumably these are UIC I as well then?

Thanks so much for the info thus far and for any further clarifications!

66s seem to be a complex fleet to track!

kind regards

Casper
 
Nym

Nym

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Somewhere, not in London
There's also modification variants, such as the remote uncoupler locomotives, TVM430/KVB modified locos, and TVM430/KVB built locos converted to TPWS Four, Tripcock fitted, etc etc.
 
H

hwl

Established Member
Joined
5 Feb 2012
Messages
7,396
Casper said:
Wow! Thank you

Is this engine assignment to emission standard therefore correct?

12N 710 G3B-EC for UIC I

12N 710 G3B-U2 for UIC II

12N 710 G3B-T2 for Stage IIIA

I'm very impressed with the assignment you have for loco numbers to emission type. There's considerably less Stage IIIA than I previously thought.

Couple of questions if I may re your reply

I appreciate the 66s seem to move around fleets quite a bit and get renumbered in the process but would you happen to have a list of the original number the loco received and the engine type too?
Click to expand...
Maybe ;) and bit more too
I'm basing these next questions on the 2018 Platform 5 data:

and your info UIC I: 001-230, 401-410, 501-572, 601-->622 701-->

UIC2 60 Still in UK [3xx-->, 411--> 585-599, 623

Euro 3a 747-779


001-230: All good. Platform 5 lists the next two as 66238 and 66250 which become 66788 and 66789 respectively. 238 and 250 are UIC I as well then?
Click to expand...
EWS ordered 001-250 but 231-250 are in Europe or have got renumbered on sale.
3xx---> Plat 5 lists just 301-305 (as does https://www.class66data.net/fleet-list.html). All ok. They are therefore UIC II

401-410 isn't listed in the Platform 5 data. It starts 66/4 from 66413.

This list https://www.class66data.net/fleet-list.html doesn't have 66401-410 either

What happened to those 401-410?
Click to expand...
now 733-737 and 742-746 (ex 841-846 and originally 406-410)
411---> would tally with the Platform 5 data listing 66413-66434 which as you say makes them UIC II

501-572, all ok. Your info makes them UIC I

585-599, all ok. Your info makes them UIC II

(what the fate and spec of 573-584)?
Click to expand...
574-577 now 847--> with Colas 578-581 to 738-741
601-622, all ok. Your info makes them UIC I

623, your info makes this UIC II

66624 and 66625 are UIC I as well? Is 66625 the highest of the 66/6 numbering?
Click to expand...
No UIC2 - in Europe with Freightliner, 625 highest numbered
701--->

Gets a bit confusing here
Click to expand...
Just a little
701-717 are listed by Platform 5 as being "like 66/0" so presumably therefore UIC I?

Plat 5 lists "718-751 as 66/0 except 718-732 and 747-749"
Click to expand...
718-732 UIC2, 733 ex 401-->405 738 etc see above, 747-749 imported EIIIa from Germany
So 718-732 are UIC I? 747-749 are UIC I or Stage IIIA?

so that leaves 733-746 as? it notes them with engine 12N 710 G3B-T2 so therefore UIC II?

I note your point that

Euro 3a 747-779

780-789 -Plat 5 lists as "like 66/0" so presumably UIC I again
Click to expand...
10 bought from DB recently e.g. 008 became 780
"66/8 Standard design as 66/0 - Colas Rail locos" with

66846 (66573)
66847 (66574)
66848 (66575)
66849 (66576)
66850 (66577)

So UIC I and that part answers the above 573-584 query!

Just 66578-584 missing

66/9

Freightliner

66951
66952
Both "as 66/3" so UIC II then?

66953
66954
66955
66956
66957

These are also listed as Freightliner but 669xx since the 66/5 list was full and they are 66/9 and "as 66/5" which are "as 66/0" so presumably these are UIC I as well then?
Click to expand...
yup but different ROSCO too to 5xx
Thanks so much for the info thus far and for any further clarifications!

66s seem to be a complex fleet to track!
Click to expand...
Ordered in 27 batches
kind regards

Casper
Click to expand...
 
Last edited:
C

Casper

Member
Joined
7 Jan 2018
Messages
35
Thank you both!

I'll collate all that and may be back with more questions!
 
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