I'm thinking of a train class..

[hmp455]

Going to guess 365 then

Dunno what replaced it.

 

[Nym]

Errr, for what I posted, 323 is correct, I'm asking what the last stock built using GTO Thyistor drive is for bonus points...

Still isn't 365 either.. getting warmer though...

 

[sprite]

Class 92

 

[Temple Meads]

I'll punt at Class 350?

 

[Nym]

Damn, forgot the 92s used GTO, yes, was introduced at the same time as the stock I was getting at, the 1996 LU Stock... oh I'm evil... The 92s use a different switching frequency though so don't make the multitonal weird noises

Schnellzug it's your turn...

 

[Schnellzug]

I'll think up a few of these for next time I get one right, should that ever occur.
For now, I'll leave the floor open for anyone who wants to have a go.

 

[Ivo]

Open floor? MINE

Seemingly often forgotten about by enthusiasts, presumably due to it lacking one feature that most of its contemporaries have, this unit is or was a fairly common sight in certain parts of the south of England. One of its main introductions saw it replace a 4-car unit that holds special recognition as the last in a long series. In addition, among its main operations, there is a large difference in the kind of operation this class runs or ran...

 

[Temple Meads]

Doubt it, but Class 377?

 

[Ivo]

Not a 377.

 

[Peter Mugridge]

450 might fit better with the "large difference" part of the clue, thinking of the 450/5s on the Windsor Lines and the rest of the class working express services to Portsmouth and Southampton, even including a small number of diagrams that have them run with 444s in a few cases.

And the "last in a long series" bit matches the replacement of the VEPs, the final slam door units built.

A feature not present? The luggage van area?

 

[Ivo]

Not 450. I'm not sure how the luggage van bit fits in with units that might be considered its "contemporaries"?

 

[Peter Mugridge]

The 460s are a similar age and have luggage vans...

Anyway, I'm out of thoughts for tonight seeing as how it's not 450s...

 

[Ivo]

Maybe, but there are two issues there. 1, the two classes (450/460) have very little else in common, and 2, the class I seek can be considered one of a "group", most of which have this feature.

 

[MK Tom]

Bit of a long shot but is it the 465? Coridoor connections being the missing feature, replaced the EPBs, 365s are used on expresses whilst 465s are metro... any luck???

 

[Tomonthetrain]

376s?

 

[Ivo]

MK Tom's answer does make some sense, but the problem is that the 365 and 465 are different classes. The situation I refer to of the workings of the class being so different is within the one class on its own (compare for instance Peter's suggestion of the 450, which does fit that clue).

376 is also not correct. With all these incorrect attempts, time for a clue; this unit *is* still in service. Which you pretty much all assumed anyway! Thus, a second somewhat useless clue; there are fewer of this unit than there are 66s. How's that for a useless clue?

 

[Temple Meads]

Hang on, is it a Class 458?

 

[Ivo]

It is not a 458. Or anything else that runs into Waterloo. Either Waterloo in fact.

 

[MK Tom]

There are only eighty six million 66s in the world... Err class 321? I can't think of anything they lack but being used on London-Peterborough expresses and on the Romford branch would fulfill the different uses thing... They replaced the 310s which were the last EMU class to have wrap round windows? I don't know I've run out of classes that are used in the south east by multiple operators

 

[Ivo]

321 is a decent guess, but not correct. The class in question does have a link to the 321, which should bring about the end to this one.

 

[Temple Meads]

Class 320?

 

[MK Tom]

Class 322?

 

[Ivo]

Nice try. But no on both counts. And don't try 456 either.

 

[MK Tom]

Class 319...

 

[Ivo]

I didn't say 321 was close numerically...

 

[Temple Meads]

Class 350?

 

[Ivo]

I was about to say you had already suggested that! But that was for the class before mine. As it turns out, 350 is wrong - but not a bad guess.

 

[MK Tom]

I was thinking how 321s and 319s have very similar bodies... Class 317? Got replaced by 321s on the WCML...

 

[Temple Meads]

Class 508?
Both being built by BREL.

(PS: I'm very pleased to see my quiz so bustling at this time )

 

[Ivo]

I had already said that all stations named Waterloo were out. 508s serve Waterloo (Merseyside).

Not 317s either, but seen as most guesses are accurate in this sense it is a 3xx.