It's because the third transformer required to support the additional traction motors in the MSO comes in a coach that would ordinarily be a PTSO, and to save money they simply built more of the existing transformer coach design, complete with pantograph well.Apparently the coach "u" on the pendolinos that were extended from 9 to 11 cars have facilities to accommodate a third pantograph. Could anyone please confirm or explain why this is?
Not all are going to be lengthened (stupid decision I know but that's the DfT for you), 31 of the exiting units will be lengthened and the four new builds (one replacing the Grayrigg write off) will also be 11-car units. The details of which services are going to see the most of the new units escapes me right now but I'm fairly sure that Glasgow is going to be entirely operated by 11-car units.Can someone tell me what the plan is with the 11-car pendolinos? Are they planning to lengnthen all of the exisitng pendos or will some remain 9-car? If the latter, what services are getting lengthened and when?
DfT probably worked out that if there were 11 car pendolinos operating between Glasgow and Birmingham, they would have to do something about the 4 car voyagers operating between Manchester & Reading.Not all are going to be lengthened (stupid decision I know but that's the DfT for you)