The contract is between Hitachi and Rock Rail East Midlands (the ROSCO), any compensation goes to the latter. Since no units have been handed over to EMR the lease hasn't started yet, so EMR aren't currently paying. While EMR are saving money not paying the 810 lease they'll be using most (if not all) of that paying to keep the 222s on lease.The only silver lining that I can see from this is that the compensation can be used to improve rail in the East Midlands.
Some investment in stations and some cheaper fares would be a good start.
The current winner is Eversholt, who've been able to keep the 222s on lease for longer than envisioned and now likely have a customer lined up (Scotrail and First Group) when EMR finally hand them back.
The units are formed of Driving Pantograph Trailer + Motor + Trailer + Motor + Driving Pantograph Trailer. Each Motor vehicle has 4x250kw motors. These are fed either by the AC bus (mounted on the roof) or by 2x986hp/735kw engine packs, one on the motor and one on the adjacent driving vehicle. The engines need much more power than the motors as running them flat out leads to terrible reliability, as found by GWR.Are they mechanically similar?
The class 805s have 3 motor vehicles instead of 2, 226kw motors, and each motor vehicle is only fed by a single engine on the motor vehicle. Unfortunately, it isn't uncommon for at least one engine to be out.
Aside from the more powerful motors, I'd be surprised if the bogeys were different. In theory, the units should have been similar, with a changed body and modified motor packs to allow for an additional engine input. I'd be curious to find out how 70% of it has ended up new.
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