20th October 1979

Monmouthshire Railway Society
(in association with Bute Town Railway Society Ltd)
Deep Duffryn Diddler

DMU Used ???
Locos & Stock Used NCB Steam No.8 (? & 'Llantarnam Abbey' ?) (3)
Stock Used 19x MDV open wagons

Route :

Traction Route
DMU Newport - Cardiff Central - Radyr Quarry Jn - Radyr - Pontypridd - Abercynon - Mountain Ash (1)
NCB 8 (3) Mountain Ash - Colliery Screens
NCB 8 (3) Colliery Screens - South on NCB line towards Penrhiwceiber
NCB 8 (3) NCB line, South of Mountain Ash - Mountain Ash Colliery Yard - North on ex-Vale of Neath line - Aberaman (2)
NCB 8 (3) Aberaman - Mountain Ash (1)
DMU Mountain Ash - Aberdare
DMU Aberdare - Abercymboi - Abercynon - Pontypridd
DMU Pontypridd - Porth - Maerdy (BR Limit)
DMU Maerdy - Porth - Pontypridd - Taffs Well
DMU Taffs Well - Nantgarw
DMU Nantgarw - Radyr Quarry Jn - Cardiff Queen Street - Cardiff Bute Road
DMU Cardiff Bute Road - Cardiff Queen Street
DMU Cardiff Queen Street - Cardiff Central
DMU Cardiff Central - Newport

Notes :
(1) The DMU & NCB train with open wagons used adjacent platforms at Mountain Ash.
(2) Beyond former overbridge, almost to points for connecting line from Taff Vale Railway.
(3) Dick Franklin's notes state that 'Llantarnam Abbey' (0-6-0ST) was attached to the rear of the train - was the train topped-n-tailed throughout on the NCB system?

Sources : Kevin Driscoll, Gary Thornton & Dick Franklin

Timings (Booked & Actual)
(from Kevin Driscoll & Dick Franklin)

Location Booked Actual
Newport 10.00d 10.00
Cardiff Central 10.17a ~ 10.20d 10.16 ~ 10.20
Radyr Quarry Jn 10/33 10/30
Radyr 10/36 10.36 ~ 10.39
Pontypridd 10/51 10.56 ~ 11.00
Abercynon SB 11.00 ~ 11.01 11.09 ~ 11.09
Mountain Ash 11.13a ~ ??.??d 11.19 ~ ??.??
Colliery Screens rev  
South on NCB line towards Penrhiwceiber rev  
Mountain Ash Colliery Yard pass  
North on ex-Vale of Neath line ?  
Aberaman rev  
Mountain Ash 13.00a ~ 13.40d ??.?? ~ 13.38
Aberdare 14p05a ~ 14p25d 13.49 ~ 14.24
Abercymboi SB 14.34 ~ 14.35 14.33 ~ 14.33
Abercynon SB 14.54 ~ 14.55 14.47 ~ 14.47
Pontypridd 15.04 ~ 15.10 15.08 ~ 15.14
Porth 15t19 ~ 15t20 15/22
Maerdy (BR Limit) 15p45a ~ 15p55d 15.41 ~ 15.59
Porth 16t20 ~ 16t21 16.22 ~ 16.23
Pontypridd 16.29 ~ 16.33 16/31
Taffs Well 16.45 ~ 16.51 16.46 ~ 16.50
Nantgarw 17.07 ~ 17.13 17.00 ~ 17.13
Radyr Quarry Jn ? ?
Cardiff Queen Street 17.41a ~ 17.42d 17.49 ~ ??.??
Cardiff Bute Road 17.44a ~ 17.57d ?
Cardiff Queen Street 18.00a ~ 18.06d ?
Cardiff Central 18.09a ~ 18.17d ?
Newport 18.35a ?


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