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Class 175 to GWR

Xavi

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Tfw units are being withdrawn at end of their c6.
Correct, though with GWR units going through C6 a right now, adding one more to the fleet would allow the initial Newquay hourly service to go ahead in May without the 175s....
 
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Geeves

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There's one Frankenstein unit at TfW (150279) made up two none crashed carriages that presumably has had all the works, it would be odd if it went to SIMs so soon!

Anyway that is off topic, I did like the 4 car GWR 175 the AI had created! Realistically it could be done by stealing a 3 car centre car so maybe they know something we don't
 

Anonymous10

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Correct, though with GWR units going through C6 a right now, adding one more to the fleet would allow the initial Newquay hourly service to go ahead in May without the 175s....
However they are only being withdrawn at the end of their C6 certificate so would require a new c6 exam.
 

geoffk

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It probably could anyway, likely at the expense of a four carriage Exmouth Paignton diagram.
We regularly have two car trains now and students get left behind, so certainly don't want to lose any 150s.
 

Xavi

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17 Apr 2012
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I believe this has been put back beyond May now as the works are behind.
Interesting. I wouldn't be surprised if this is related to Treasury>DfT>NR release of funds (micro-management) rather than ability to keep to programme.
 

Anonymous10

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So cost and profit over service to the public, it is called public transport for a reason
The issue is even if a tfw unit was acquired they would need a c6 and alot of work doing. They are reported to be rotten and riddled with rust. So would be talking months from transfer to actual availability.
 

Wolfie

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There's one Frankenstein unit at TfW (150279) made up two none crashed carriages that presumably has had all the works, it would be odd if it went to SIMs so soon!

Anyway that is off topic, I did like the 4 car GWR 175 the AI had created! Realistically it could be done by stealing a 3 car centre car so maybe they know something we don't
What would the power situation be with a four car 175?
 

Tevion539

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23 Apr 2020
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Would 4 cars fit on their intended route? The 175s don’t have SDO. They do have TUDI, but this must be activated in the trailing cab of the desired unit and only locks out trailing units.
 

Xavi

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17 Apr 2012
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752
The issue is even if a tfw unit was acquired they would need a c6 and alot of work doing. They are reported to be rotten and riddled with rust. So would be talking months from transfer to actual availability.
Slip one ex-TfW unit into the GWR C6 programme and maximise the mileage on the existing GWR fleet before they head to Wolverton. That gives an extra unit in traffic.

It’s an option to keep the Cornwall Metro promise if DfT (Treasury) pulls the 175 deal.
 

Towers

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Would 4 cars fit on their intended route? The 175s don’t have SDO. They do have TUDI, but this must be activated in the trailing cab of the desired unit and only locks out trailing units.
Can the TUDI selection not be made from the driving cab? Seems a rather bizarre design if it were only operable from the rearmost unit, how is that intended to work mid-journey?
 

TurboMan

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Can the TUDI selection not be made from the driving cab? Seems a rather bizarre design if it were only operable from the rearmost unit, how is that intended to work mid-journey?
It is operated in the rear cab of the front unit. But it's not designed to be used as an SDO system during a journey and it is unlikely that GWR will use it in that way (too much risk of error).
 

Towers

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It is operated in the rear cab of the front unit. But it's not designed to be used as an SDO system during a journey and it is unlikely that GWR will use it in that way (too much risk of error).
Ah; I mis-read the original post!
 

craigybagel

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Can the TUDI selection not be made from the driving cab? Seems a rather bizarre design if it were only operable from the rearmost unit, how is that intended to work mid-journey?

It is operated in the rear cab of the front unit. But it's not designed to be used as an SDO system during a journey and it is unlikely that GWR will use it in that way (too much risk of error).
At the 175s previous TOC, TUDI was operated solely by the guard (as they had sole control over everything door related). There was a protocol in place for using it mid journey with passengers onboard if absolutely necessary but it rarely was carried out - mostly it was used to lock a unit out for the duration.
 

Towers

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At the 175s previous TOC, TUDI was operated solely by the guard (as they had sole control over everything door related). There was a protocol in place for using it mid journey with passengers onboard if absolutely necessary but it rarely was carried out - mostly it was used to lock a unit out for the duration.
Are they full guard release? Their class 180 cousins had an unusual arrangement involving driver & guard exchanging buzzes, ISTR!
 

craigybagel

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Are they full guard release? Their class 180 cousins had an unusual arrangement involving driver & guard exchanging buzzes, ISTR!
Yes, full guard release. As built they were set up for driver release, and the intermediate panels only had close buttons, but the wiring has been removed from the drivers release buttons, and release buttons have been added to the intermediate panels (in addition to the full panels on the cab bulkhead).
 

3973EXL

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tfw756rider

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A third 175 going from Ely to Laira, but 175002 or 175114 going back to Landore?
 

Tevion539

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I worked the 175s for about six months before they left service. The above posts are correct. The doors are fully guard controlled and TUDI was supposedly used when running multiple units on the Marches. Leominster, Ludlow and Abergavenny have shorter platforms and wouldn’t accommodate 6 coaches. The official stance was that if we were to leave the rear unit unlocked, anyone for stations with short platforms were to be made aware by the time they reach the penultimate stop so that they could move to the front unit in a timely manner. However, I never experienced anyone ever using TUDI and rear units were typically just locked out of use. Multiple 175s only typically run when one had been to Chester for service and needed to get to Cardiff in my experience.
 

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