The numbering of LU units?

This reply could take some time......

Each 'line' has its own set of stock (almost!!) and each numbering sequence is different.

Basically a 'train' is two sets, of either 3 or 4 cars each.

Each set of 3 (or 4) has a consistent number pattern and is permanently coupled.

Most sets of modern stock have a cab at one end only, then some types also have sets which are double-ended to attach to either end of a single-ended set.

Older stock is all double cabbed sets, but even then it's not that simple!!!

More detail as you need it - in easy stages as you ask!!!!

I can explain the C, D and 1973TS numbering.

C Stock

C stock is numbered using two primary groupings: 55XX and 65XX.

55XX numbers are allocated to Driving Motors and 65XX numbers are allocated to Trailers; all units are formed of three two-car units, and thus when a C stock train is described in terms of unit numbers it is named in terms of the unit numbers allocated to the Driving Motors - e.g. 5501-5502-5503.

D Stock

D Stock is numbered using three primary number groupings: 7XXX, 17XXX and 8XXX.

Numbers in the 7XXX series are for Driving Motors - 70xx and 71xx numbers are given to Driving Motors in single-ended units. 75xx numbers are given to Driving Motors in double-ended units (i.e. units with cabs on both ends).

Numbers in the 17XXX series are given to Trailers; the 17XXX indicates that power for the equipment on the vehicle is taken from the corresponding Driving Motor, i.e. 17008 takes power from 7008.

Numbers in the 8XXX series are given to Uncoupling Non-Driving Motors, which occur only on single-ended units.

The last three digits will always match for a single-ended unit: 7000-17000-8000, 7008-17008-8008, 7065-17065-8065, etc. For double-ended units, the numbering for the paired DMs will be sequential: 7505-17505-7506. When a train is described in terms of the unit numbers, it will be described in terms of the outward-facing Driving Motors - e.g 7008-7065.

1973TS

1973 Tube Stock is numbered using six primary number groupings: 1XX, 2XX, 3XX, 4XX, 5XX, and 6XX.

The 1XX, 3XX and 5XX groupings are given to units whose Driving Motors face one direction, i.e. towards Uxbridge and Heathrow. The 2XX, 4XX and 6XX groupings are given to units whose Driving Motors face the other direction i.e. Cockfosters (naturally this no longer applied after 1986 and the T4 loop, but AFAIK they were delivered in this manner, and all of them were turned after the T4 closure to ensure that they were lined up correctly).

The principles of number divison are otherwise the same; 1XX and 2XX are given over to Driving Motors, 3XX and 4XX are given over to Trailers, and 5XX and 6XX are given over to Uncoupling Non-Driving Motors. AFAIK 4XX/5XX vehicles also take power from 1XX/2XX vehicles. Likewise for the above two stocks, when a 1973TS train is described in terms of unit numbers, the outward-facing Driving Motor unit numbers are cited, e.g. 166-266.


All this information and more can be gleaned from the Tubeprune's awesome website on LU rolling stock:
www.trainweb.org/tubeprune/Rolling%20Stock.htm

(fx: stampede of LU staff...)

Is that right? I thought it would be 7505-17504-7504, i.e. the lower of the two DMC numbers would be the even one, and the trailer takes its number from the even numbered DMC.

Not 100% certain, though.

That seems to be one of the most highly pedantic things i have heard about in this modern era. I love it... How much effort did it take to turn them, a run on the loop when it was closed?

Not all of the 73s were turned in time for the closure AFAIK. I believe one or two of them are stuck facing in the opposite direction to the other units.

Driving Motor Car - The first digit will beeither a 1 or a 2 followed by 2 digits. EG: 1xx or 2xx.

Trailer Car - The first digit will be either a 5 or 6 followed by 2 digits. EG: 5xx or 6xx

UNDM - The first digit will be either 3 or 4 followed by 2 digits. EG: 3xx or 4xx

Double Ended Units:

Driving Motor Cars - The first digit on both carsw will be 8, followed by 2 digits. EG: 8xx

Trailer Car - The digit will be 6, followed by 2 digits (same as "A" DMC). EG: 6xx

So you have three car units in the following number series:

1xx 5xx 3xx or 2xx 6xx 4xx or 8xx 6xx 8xx

D stock double ended units are numbered as follows:

"A" DMC - 7500 to 7538
Trailer - 17500 to 17538
"D" DMC - 7501 to 7539

Then a 6 car train will be as follows:

A DMC - 7000 to 7128
Trailer - 17000 to 17128
D UNDM - 8000 to 8128
A UNDM - 8001 to 8129
Trailer - 17001 to 17129
D DMC - 7001 to 7129

A stock:

An eight-car A60/62 stock train consists of two non-reversible four-car units, coupled together in the
following combinations:

· two single ended units
· a single ended unit and a double ended unit
· two double ended units.

A single ended unit consists of a driving motor car, two trailer cars and an uncoupling non-driving
motor car.

A double-ended unit consists of a driving motor car, two trailer cars and a driving motor
car.

A double ended unit can also be used to provide a four-car train on the Metropolitan Line Chesham branch or the East London Line.

There are two car categories; eighty seven single ended units; forty four ‘A’ end and forty three ‘D’ end (two of the trailer cars are fitted with de-icing equipment). Twenty six double ended units (nineteen of the trailer cars are fitted with de-icing equipment).

An example :

A DMC - 5000
Trailer - 6000
Trailer - 6001
D DMC - 5001

Hope thats of interest

Jubilee numbers,A motors 96002 to 96126,D motors 96001 to 96125
A Trailers 96202 to 96326,D trailers 96201 to 96325
A UNDM's 96402 to 96526,D UNDM's 96401 to 96525
7th car trailers 96601 to 96725(D units only)
De-icing trailers are 96288 to 96318.

Hope that helps.

so there isnt really a format like there is on for example SWT trains

i.e.

Class 458s
where you get 458001-458030

as in each train has no number for the whole 6/7/8 cars it has... correct?

e.g.
it wouldnt be FOR EXAMPLE
7301
7302
7303

however if it was, 7301 and 7302 would be back to back so its like 2 trains?

Whilst a 2, 3 or 4 car unit may only have a cab at one end, it is considered a train in it's own right.

In light of mandgc's comment below, and to hopefully make it clearer, each line's trains are made up like this:

Bakerloo: (72ts) 7 cars, 2 units
Central: (92ts) 8 cars, 4 units
Circle: (C stock) 6 cars, 3 units
District: (C stock) 6 cars, 3 units
(D stock) 6 cars, 2 units
East London: (A stock) 4 cars, 1 unit
Hammersmith & City: (C stock) 6 cars, 3 units
Jubilee: (96ts) 7 cars, 2 units
Metropolitan: (A stock) 8 cars, 2 units
Northern: (95ts) 6 cars, 2 units
Piccadilly: (73ts) 6 cars, 2 units
Victoria: (67ts) 8 cars, 2 units
Waterloo & City: (92ts) 4 cars, 2 units

There is loads more information available on tubeprunes site:
www.trainweb.org/tubeprune/Rolling%20Stock.htm

Right, you have learnt about Rolling Stock and the formation and differences on the different lines. Next part of the training, is Fault Recognition!!!

He he! Read a wonderful story about some poor trainee that dozed off in the classroom at White City, and was woken up by summat flying his way!

snore, snore, Ouch!! errr C stock ......

5606/6606 has been scrapped,was used for testing of Knippe control gear for 83TS,LUL couldn't be arsed to convert it back to PCM.

We did that one in some detail a few months ago:

districtdave.proboards39.com/index.cgi?board=Trains&action=display&thread=1134637543