I'm unsure how you intend to diagram your 19 9 car sets. Plymouth-Edinburgh has something like 18 diagrams, so if you concentrated them on that route you'd need 21 to cover for maintenance. An XC diagram will cover multiple busy flows so it would be difficult to decide which to give a 5 car to. That's before considering the Bournemouth-Manchester-Bristol diagrams (another 18 diagrams which again see some busy flows). If we're fixing the number of vehicles at the current level then it would be better to have 26x7 and 26x5 which would allow you to spread the fleet more broadly than having a small number of very long trains.
That gives you 11,778+7,774 = 19,552 (using the Avanti interior specs, which are far better than the IET accommodation) for 312 vehicles.
Using the 342 vehicle baseline you've got from using the off-lease units, you could have 41x7 and 11x5 which would be enough to strengthen both the Anglo-Scots and the Manchester diagrams, leaving the shorter sets to the Reading-Newcastle circuit. 21,862 seats.
Why would the Plymouth/Edinburgh services need to be 9 coach trains, looking at the 1st July:
Northbound - 7 of 9 services are 5 coaches or shorter
Southbound - 6 of 9 services are 5 coaches or shorter
Even at Birmingham any Plymouth services only around 1/2 are longer than 5 coaches.
Likewise, at Birmingham, other than 3 services (in both directions) all the XC services are 5 coaches or fewer.
That's a minimum upgrade from 246 seats to 302 (but I'm not sure how easy it would be to justify a near doubling of first class seats vs + circa 15% for standard class - based on your comment about LNER layouts). More realistically it's 326 seats and so a minimum per train uplift of 32.5%.
Yes, there's a few units out of action as they are being refurbished so there could be a few extra diagrams which would be longer once the refurbishment is completed.
Worth remembering that any new fleet will drink less fuel and be more efficient to staff than Voyagers.
I've not forgotten that, and did mention that elsewhere. Likewise, I talk about the savings in track access charges, which whilst being small per coach per mile mount up to be in the millions (enough to cover the lease of several coaches).
How many single 220 diagrams remain? Don't most of them run coupled up these days except on the Reading-Newcastle run? Today's allocations aren't reliable as there's a lot of disruption.
Not lots, but not zero either at Birmingham (not double counting between the two)
Plymouth services see 2 in each direction
Manchester services see 5 in each direction
Even the 5 coach 221s are inadequate and single length sets are very much in the majority.
Even if we could deliver 90% fleet utilisation there's 19 spare sets to run services doubled up. More realistically it's closer to 17, so a little better than 1 in 3.
A 22.76% uplift on a 221 isn't going to go far, not with the amount of suppressed demand XC has.
Agree, which is why the fleet should be to GWR specification rather than LNER specification (as that's a 32.5% uplift) and the order would have an option for more coaches.
The point is to get the next step (after the spare 221's) with an offering which doesn't spook the DfT by having a fairly close fleet size to what's currently there but without over specifying the capacity.
By showing that there's a need for extra capacity it becomes easier to justify that follow on order.
7 coach trains have the issue that:
- they increase capacity vs a 4 coach unit of +126% even a 5 coach set that's +84%
- they don't maximum platform capacity but also can't run in pairs
- they may not count as full length and so the lease costs might be higher than the 9 coach sets
- you run the risk of 5 coach needing to sub for a 7 coach unit, at least with the 9 coach there's the option to run as 5+5 to sub for a 9 coach set (and it's only the 1st class passengers who have to have their seat reservations messed up, but GWR appear to manage it well).
Approve the off-lease 221s and sort out the staffing issues as a stopgap. But they really do need to look at ordering some new trains.
Agreed, the point with the 80x or similar order suggestion is that it should be a fairly easy order to justify, as its not increasing the number of coaches (in the base order, there's an option for more when passenger numbers increase) but it creates a load of extra capacity.
Chris Green realised what was going to happen and wanted to increase unit lengths. The Strategic Rail Authority (who were the contemporary equivalent of the DfT for this purpose) said "no".
Even if they'd allowed enough units to run the Euston services to be lengthened to be 9 coaches (11 sets, so only 44 extra coaches) that would have given XC an extra 4 diagrams which could have been 4+4 sets and 8 diagrams which would have been 5 coach sets vs 4 coach sets.
The Voyagers were intended to work as single sets but with a view to lengthen them to 6-cars as was a stated aspiration by Virgin Trains at the time. The 6-car scheme was subsequently blocked by the SRA and the extra capacity never materialised, despite the new timetable generating additional demand.
Virgin XC also used to hire in HSTs during the summer and used loco hauled sets on the West Coast to Manchester periodically so it was apparent fairly quickly that they were insufficient.
Likewise, Project Thor (bimodal upgrade to the 22x fleets) appears to have looked at the 5 coach sets and gone "we need 2 pantograph coaches for this".
Rather it should have said "OK, as we need 2 pantograph coaches for trains of 6 coaches or more, let's remove 1 coach from the 5 coach sets and then create a new sub fleet of 9 coach sets and Virgin use those rather than 5+5 sets almost all the time".
The 220 fleet would now be all 5 coach sets (34)
The 221 fleet would be a mix of 5 and 9 coaches, with 15 sets of 9 coaches (11 at Virgin and 4 at XC) and 29 sets of 5 coaches (all at XC - note this isn't far behind the current 32 at XC)
That would have allowed XC at that time to run 16 of the 44 diagrams as 9 coach units or 5+5 trains. Once they gained the Avanti sets, that would have risen to 35 out of 44!
The 222 fleet would be:
11 sets of 9 coaches*
16 sets of 5 coaches
*would have required the purchase of 1 diesel coach, otherwise one would have been 8 coaches.
However, it would have been far more useful than a load of 5, 6, and 9 coach sets and would have required fewer new coaches
As such there were two missed opportunities to increase capacity - if they had both been taken XC could potentially have had a universal fleet of 8 coach sets (the same capacity as all diagrams being 5+4 trains).