Class 93 Tri-mode Loco

[ac6000cw]

Surely a dynamometer car would still require a steep bit of railway to record the results for it's performance up a hill? I would hazard a guess that modern telemetry can be fitted to the units without needing a dedicated vehicle that the fragmented railway doesn't really have a good place for.

Modern traction control systems can measure/log tractive effort, power, speed and probably pretty much anything else you might want to know about how a loco is performing. so I doubt you need anything else.

If you wanted a variable test load, hauling a loco or two with decent capacity dynamic/rheostatic braking that can be used independently (i.e. not linked with the train or loco friction brake systems) could provide it. I don't know if any UK locos can do that (class 70s maybe - anyone know?).

 

[47286Dan]

This mornings allocation.

93001 GROG WORKSP DY 260Q421F07 F CREWE SYD B
93007 GROG WORKSP DY 260Q421F07 F CREWE SYD B

Dan

 

[hwl]

Modern traction control systems can measure/log tractive effort, power, speed and probably pretty much anything else you might want to know about how a loco is performing. so I doubt you need anything else.

Agreed nothing else needed.

If you wanted a variable test load, hauling a loco or two with decent capacity dynamic/rheostatic braking that can be used independently (i.e. not linked with the train or loco friction brake systems) could provide it. I don't know if any UK locos can do that (class 70s maybe - anyone know?).

70, 88, 90 or 91 would be suitable. The resistors aren't that big (volume constrained) so you would need a few trailing locos to do this.

 

[AndrewE]

Agreed nothing else needed.

what about drawbar pull? all of the above are very fine, but take no account of adhesion! The whole point of a dynomometer is that it measures the pull, which is otherwise missed completely.

 

[47286Dan]

This mornings allocations

93001 GROG CREWE SYD 420Q111G11 F LANCASTER
93007 GROG CREWE SYD 420Q111G11 F LANCASTER

93006 GROG WORKSP DY 260Q041F11 F NEWARKNGT
93010 GROG WORKSP DY 260Q041F11 F NEWARKNGT

Dan

 

[Rhysdabeast]

93010 and 93006 on tonights 6Q09 Basford Hall - Carlisle NY loaded test run on load 18. 15x NLU29 JNA-C's & 3x 5892 IEA-A's.

 

[Wyrleybart]

Do they have the confidence to use a single loco and shut the other one down for "insurance" ?

 

[800001]

Do they have the confidence to use a single loco and shut the other one down for "insurance" ?

I thought they were only using one loco with the second loco dead behind it?

 

[Rail Quest]

First info we've had about one of the locomotives being named, to my knowledge. ROG have announced on LinkedIn that "the very first type 93 train", so presumably 93001, will be named "The Armed Forces Covenant" at Shildon on 23/09/25. This looks to be taking place as part of Locomotion's "Next generation line up" event.

ROG LinkedIn post: https://www.linkedin.com/posts/rail...p&rcm=ACoAAES2JOIBdF9NRGoKnJsbPUxgTpld7WhLTzo
Shildon "Next generation line up" event: https://www.locomotion.org.uk/whats-on/next-generation-line

 

[Rhysdabeast]

93010 and 93006 on tonights 6Q09 Basford Hall - Carlisle NY loaded test run again with a slightly increased load from the previous night, 19x NLU29 JNA-C's & 3x 5892 IEA-A's making it load 22 on tonights run.

 

[Wyrleybart]

First info we've had about one of the locomotives being named, to my knowledge. ROG have announced on LinkedIn that "the very first type 93 train", so presumably 93001, will be named "The Armed Forces Covenant" at Shildon on 23/09/25. This looks to be taking place as part of Locomotion's "Next generation line up" event.

ROG LinkedIn post: https://www.linkedin.com/posts/rail...p&rcm=ACoAAES2JOIBdF9NRGoKnJsbPUxgTpld7WhLTzo
Shildon "Next generation line up" event: https://www.locomotion.org.uk/whats-on/next-generation-line

AIUI one of the ROG seniors is very active in the Royal Navy training regime, so it is no surprise.

 

[Suraggu]

93010 and 93006 on tonights 6Q09 Basford Hall - Carlisle NY loaded test run again with a slightly increased load from the previous night, 19x NLU29 JNA-C's & 3x 5892 IEA-A's making it load 22 on tonights run.

Looking at the schedule it appeared to manage the load without issue.

Realtime Trains | 6Q09 2232 Basford Hall Yard (Fl) to Carlisle N.Y. | 15/07/2025

Real-time train running information for 6Q09 2232 departure from Basford Hall Yard (Fl) to Carlisle N.Y. on 15/07/2025. From Realtime Trains, an independent source of train running info for Great Britain.

www.realtimetrains.co.uk

 

[5562]

Anyone know if both were working or just the one.

 

[Suraggu]

Anyone know if both were working or just the one.

One working in each direction.

 

[5562]

Many thanks. I’m no expert but my first reaction is that it was an impressive performance.

 

[hwl]

93010 and 93006 on tonights 6Q09 Basford Hall - Carlisle NY loaded test run on load 18. 15x NLU29 JNA-C's & 3x 5892 IEA-A's.

Many thanks. I’m no expert but my first reaction is that it was an impressive performance.

That is 22x 90 tonne wagons so 1980 tonnes of wagon + the dead loco so about 2065 trailing in total.
A 93 should be able to do this so confirmation of expected performance.

 

[Mollman]

AIUI one of the ROG seniors is very active in the Royal Navy training regime, so it is no surprise.

Shame the 68s have taken the warship names otherwise.

 

[Richard123]

That is 22x 90 tonne wagons so 1980 tonnes of wagon + the dead loco so about 2065 trailing in total.
A 93 should be able to do this so confirmation of expected performance

There are pages and pages upthread of enthusiasts confidently opining that it won't pull the skin off a rice pudding! 50mph up Shap hauling 2100t. It must have grown some extra axles!

 

[Nottingham59]

That is 22x 90 tonne wagons so 1980 tonnes of wagon + the dead loco so about 2065 trailing in total.
A 93 should be able to do this so confirmation of expected performance.

Yes. 2065+86t on a 1.31% gradient is a Tractive Effort of 276kN, plus rolling friction (~21kN) and wind resistance (depends on speed). That's just within spec. If it maintained 50mph up the steepest gradient, with the wind resistance that implies, that would be very impressive.

It would be interesting to see how it performs in winter under different conditions of adhesion.

 

[Suraggu]

There are pages and pages upthread of enthusiasts confidently opining that it won't pull the skin off a rice pudding! 50mph up Shap hauling 2100t. It must have grown some extra axles!

They moved onto ‘They don’t have any work for them’ instead.

 

[Richard123]

They moved onto ‘They don’t have any work for them’ instead.

 

[47286Dan]

Today’s movement

93001 GROG CREWE SYD 420Q281J19 F WORKSP DY B
93002 GROG CREWE SYD 420Q281J19 F WORKSP DY B
93006 GROG CREWE SYD 420Q281J19 F WORKSP DY B
93010 GROG CREWE SYD 420Q281J19 F WORKSP DY B

Dan

 

[Bertie the bus]

They moved onto ‘They don’t have any work for them’ instead.

Some of us have made no judgement about their capabilities but have consistently said they have no work for them, and so far (more than 2 years after their delivery) have been proved right. I also have no doubt we will continue to be proved right.

 

[47286Dan]

This mornings working

93004 GROG WORKSP DY 260Q041F21 F NEWARKNGT B
93005 GROG WORKSP DY 260Q041F21 F NEWARKNGT B

Dan

 

[kennythelad]

Nice pic at Worksop, this morning. In numerical order, as well! (Not my pic)

 

[5562]

Nice photo. Is the viewpoint a public one?

 

[zwk500]

Nice photo. Is the viewpoint a public one?

Given the photographer is apparently either on the tracks or extremely close to them with no fence in between, I'd suggest not.

 

[kennythelad]

Nice photo. Is the viewpoint a public one?

Not as far as I know. I think it was a ROG employee that took the photo

 

[Jacob Porrett]

Nice pic at Worksop, this morning. In numerical order, as well! (Not my pic)

Someone has done that on purpose no?

 

[AndrewE]

Someone has done that on purpose no?

...but maybe not officially!