When speculating about future rolling stock plans:
- there seems to be a consensus amongst all published material hat there will be TOTAL fleet replacement;
- although the rail minister used the word "new", published material (from DfT and Abellio) only claim that the main line trains will be replaced with new ones; moreover, to comply with the ITT, these must be bi-modes;
- St Pancras - Corby services will be worked by 12-car trains in the peaks; platform constraints (STP ones are shown in the Sectional Appendix as being 260m) mean the Corby's must therefore be formed of 20m long vehicles;
- quality played a major role in determining the successful bidder; the ITT showed a worked example so that bidders could understand the methodology the DfT was using.
- consequently, class 379s, with 2+2 seating in standard and 2+1 in first, would probably score higher than some other EMUs being proposed herein for Corby services.
- however, new bi-modes were mandated for St Pancras - Sheffield/Nottingham services; moreover, they had to be able to match the performance of the 222s, and this was described in such a way as to make it clear that this was when working in non-electric mode as well as when as straight electrics.
- DfT acknowledged that a bi-mode which met this requirement didn't exist at the time the ITT was issued, and laid down when a prototype had to be delivered to this country for testing.
- for the regional fleet, 153s and 156s are definitely out, as they are not air conditioned; and remember, the "new" trains are described as being more modern and faster than the existing fleet, which also discounts 158s.
- how many diagrams will be required to cover the Norwich - Derby services? Will there be sufficient 180s coming off lease? Their 125mph capability would be useful on the ECML between Grantham and Peterborough, and could cut about 10 minutes of the time allowed for a 158 between these two points. Can engines be isolated on the flat lands east of Peterborough where they are not required?
- certainly, 175s and 185s will be coming off lease in the not-to-distant future, but there would be operational problems with them as 175s can't make use of SP speeds, and 185s can't make use of HST, MU, DMU, or SP enhanced speeds. Moreover, whereas all of the current regional fleet DMUs can work in multiple, 175s can't work with 185s, and neither can work with 170s.