S stock delivery & introduction - discussion

Fantastic that these are starting already! Presumably they can't go further east than Barking for now (and hence, in practice, will most likely terminate at Tower Hill)?

Apparently the first S7 Stock to Richmond ran later than I expected. I was at the right place at the right time but only the D Stock appeared. I probably got to get my communication methods fixed for Upminster.

I'm getting really bad at this.

What is left between Barking and Upminster before they start any kind of day time testing/service?

I've also noticed some kind of large structure at the end of platform 4 at Upminster (looks like a stairs to a diving board) appear within past two weeks. Does anyone know what this is and why it's only on one platform?

The structure on platform 4 is to house the re-sited shunt signal and rail-gap indicator which were mounted at track level and unsighted by S Stock.
Signal immunisation is still taking place Upney-Upminster, i think the signal re-sighting has now been completed.
Enhancement to power supplies in the longer term are taking place at Upminster Bridge, Hornchurch, Elm Park, Heathway and Upney substations.

Sorry, what is meant by signal immunisation? Ta

Two passenger S stock trips to Richmond were completed:
Barking bay - Richmond p7 - High Street Kensington p3 - Richmond p6 - Barking Sidings.
units were 21400 (west) + 21399 (east)

Hornchurch substation is at Elm Park, when it was built there was no station at Elm Park so it was called Hornchurch substation.

I've just seen 21425/26 being run out of service so it will probably be entering passenger service soon.

Everything that has been delivered has been in passenger service at some point, 21426/25 being the latest (behind 21428/27). There are now 57 commissioned S7s, along with 3 S7+1s on the Met (and the S8s of course).

Any update on the timescale for S stock operation on the main District line?

Thanks. I get the impression that once the S stock is cleared for regular timetabled use on the District main, the pace of introduction will be fairly quick. There are a lot of S stock being held up north at the moment, and there will probably be pressure to get them delivered ASAP. I'm not sure how many S stocks can be delivered before D stock will have to go for scrap in order to make room.

Personally, I can't see many passengers missing the D stock trains. In the recent hot weather, they are being very unfavourably compared to the air conditioned S stock! As far enthusiasts, that's a different matter . . .

I totally agree with this. A quantum leap forward was welcomed by Metropolitan Line passengers aside from enthusiasts for A stock and the same will happen for D stock. In the real world who would choose to stifle in an old train where something more comfortable was available ?

Depends on your definition of "comfort". Having a seat comes high on many people's list.

What is the difference in the number of seats between a D and S7?