Occasionally at weekends they still make an appearance but I haven't seen them on any other mainline routes.
In further response to this, they were ordered specifically for metro routes, so that they could easily have 10-car formations.
Yep indeed. Saw them arriving.
I think they were referring to trapped in that operating area rather than physically stuck?
Three different types of seats on offer there then! (Assuming the old school wasn't 101-115) Plenty of choice!
Yes i was on the 12:45 out of east croydon, it was very odd i must say.
There are a number of /1s that have fully 3+2 seating in standard as far as I'm aware.
377120-377139, which might appear to have 3+2 seating throughout, because it is in the centre section of each coach, have 2+2 seating at the outer ends.
The 377/6 and 7s were ordered to replace 319s and 456s and also some 2s that were loaned to FCC, and for the 10 car platform extensions. They ordered enough at the time. It was welcome extra capacity.
oh i see, but what about a sudden rolling stock change then? would sometimes /6s would hop in and help out?
They can. They have full clearance as per any 377 subclass and all drivers sign them. The tricky part is so many SN diagrams involve attach/detach (not necessarily in service but they’re booked to split upon arrival in Brighton post peak, or attach to another set upon arrival in Eastbourne ready for a peak return) that the change in carriage numbers can cause problems. You can’t stick one on a diagram that ends in a 12 coach formation as 13 is too long.
maybe because they are suppose to be located for metro services?
Perhaps, but at the same time they are pretty much designed better than the older versions internally, to be able carry more people when they go towards of from Gatwick lets just say. More seats and carriages etc. So as a bi product id imagine they are useful for multiple service types? And probably why they were used in those services originally.
Is it possible that there is a diagram for /6s and /7s on the brighton to victoria runs available? I want to try and ride them. The acceleration profile on the newer 377s seems alot more consistent id love to track their GPS performance to 90mph on the faster mainlines. If you know of any timetabled slots that they do , that would be perfect.
Thanks for the explanation! If I understand it properly, it means that the 4-car 377 has 3 traction packages powering the 3 motored cars, while the 5-car 377 has 3 traction packages powering 4 motored cars.
it is likely that the 'windings" as OP describes it is sharing power among the motors somehow. There are still 1 inverter near each motored bogie from a visual standpoint. So 4 inverter per bogie? I guess.
You slightly misunderstand. On DC the MCM is fed via the high speed circuit breaker, which is fed via the DC bus line. On AC the dc bus line isn’t used, so ok DC you run with 4 MCMs and AC with 3( MOSb doesn’t power up so no MOSb motors). Current limits should be the same for each unit so the additional mass of the now trailing motor car affects acceleration.
This makes alot of sense. Well im still laymens. The acceleration is pretty much the same. I also find it strange because under the wires the motors still seem to make sound, so arent they still being fed power? I mean even on MOSb . It would seem anyway. Also i made video comparison of acceleration GPS Footage. They are the exact same in AC and DC
i dont think they go to milton now (which is a big shame). Because they only now cut back into Watford Junction. The crowded sections really only is between the overground stations to Selhurt or something? I cant remember but during peak its PACKED.
