121 Class locos were used on the ex-AEC push-pulls operating the Bray-Greystones shuttle for the period between the withdrawal of the last of the B201 Class in November 1986 and the withdrawal of the final push-pull in September 1987. As far as I know, members of the 141 and 181 classes were never used on push-pulls.
Seriously impressive work Paul. Your work so far on the additional structures has taken the Scenecraft model to a whole new level. Can't wait to see your progress in the larger scale.
Perhaps 'Steam Heating Vans for passenger trains' would be more accurate. The type of van in the photo did not have any generating capacity and was purely a steam heating van.
In Everard Junction's video 'Building a Model Railway - Part 2 - Planning' (
)he covers the entire baseboard in cork and then uses additional thin cork sheets to raise the track above this level. So the balast never touches the wood of the baseboard.
DTSOs 741 and 748 were part of the second batch of 80-class railcar sets, ordered by NIR in 1975 and put into service 1977/78. They were built new for NIR by BREL and did not see service with BR. 741 was introduced in Jan 1978 and was withdrawn following a fire bombing at Finaghy in Sept 1979. No 748 was introduced in May 1978 and was withdrawn following a fire at Crumlin in May 1979.
These were 80 Class driving trailers, not Enterprise stock. DiveController has detailed their building dates. As to the 'why' part of your query - they were bought to replace 741 and 748 which were damaged during the troubles.
DC, the 1st Class section of the compo would, generally, have been at the EGV end of the coach.
On the Cork line the consist on the principal trains was (from the Cork end): EGV, CityGold, Catering, 6 Standards.