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LTSV > Rail Data > Data > Codes > TOPS List > 31
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TOPS Code/Class: 31 Previous Next
TOPS Category: ?This is my own (unofficial) means to categorise TOPS codes based on what they relate to and whether they are long (4 characters, i.e. including sub-codes) or short (3 characters) SL - Short Code, Locomotives In selection ?This works on your last-used TOPS selection, including any filters and sort orders. Buttons will not show if the current TOPS code was not in your last selection, or if you are at the beginning or end of the data set.
TOPS GENKOC: ?The first character of a TOPS code is known as the GENKOC and indicates the general type of rolling stock (e.g. 1xx are DMUs). 0 - Locos Overall ?This works on the overall TOPS code list without any filtering or sorting applied.
TOPS BRAKTY: ?The third character of many TOPS codes is the BRAKTY, indicating the type of braking equipment fitted (e.g. A indicates air brakes). * - Not defined by code
Description: A1A-A1A Diesel Locomotive
Numbers: ?Numbers are only shown where the ranges were limited. Otherwise, refer to the listings section below. The letter r after the numbers indicates this is a range, with not all numbers in the sequence used.
Status: Current
Date On:
Origins: Reclassified (TOPS)
Date Off:
Destiny:
Key Photo:
Icon: icon
Sub-codes ?If this code had any sub-codes, they will be listed here.
31/0 A1A-A1A Diesel Locomotive
31/1 A1A-A1A Diesel Locomotive
31/4 A1A-A1A Diesel Locomotive
31/5 A1A-A1A Diesel Locomotive
31/6 A1A-A1A Diesel Locomotive
Designs/Diagrams ?Design codes and diagrams related to this code (and any sub-codes where relevant) are listed here.
14 designs/diagrams currently listed against this TOPS code/class (including any sub-codes).
DesignClassSeriesDescriptionStatus
31-0AV 31/0 BR TOPS Loco Design Code Class 31/0 A1A-A1A Diesel Loco TBC
31-1AV 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1BX 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1CX 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1DV 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1EV 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1FX 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1GX 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1HV 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-1JX 31/1 BR TOPS Loco Design Code Class 31/1 A1A-A1A Diesel Loco TBC
31-4AX 31/4 BR TOPS Loco Design Code Class 31/4 A1A-A1A Diesel Loco TBC
31-4BX 31/4 BR TOPS Loco Design Code Class 31/4 A1A-A1A Diesel Loco TBC
31-4CX 31/4 BR TOPS Loco Design Code Class 31/4 A1A-A1A Diesel Loco TBC
31-6AX 31/6 BR TOPS Loco Design Code Class 31/6 A1A-A1A Diesel Loco TBC
Batches ?Batches of numbers built or converted to this TOPS code are listed below. Note that only codes that were wholly to this code will appear, otherwise refer to the listings section for other numbers.
There are 10 batches recorded as being wholly to this TOPS code (including any sub-codes).
Numbers Class Design Type Qty Origin Built/Converted Date/s Lot
31001-31019 31/0 Class 31/0 A1A-A1A Diesel Loco 19 Renumbered 1974
31101-31327r 31/1 Class 31/1 A1A-A1A Diesel Loco 225 Renumbered 1974
31400 31/4 Class 31/4 A1A-A1A Diesel Loco 1 Conversion 1988
31401-31419 31/4 Class 31/4 A1A-A1A Diesel Loco 19 Renumbered 1974
31420-31424 31/4 Class 31/4 A1A-A1A Diesel Loco 5 Conversion 1974-1975
31425-31468 31/4 Class 31/4 A1A-A1A Diesel Loco 44 Conversion 1983-1985
31469 31/4 Class 31/4 A1A-A1A Diesel Loco 1 Conversion 1988
31507-31569r 31/5 Class 31/5 A1A-A1A Diesel Loco 32 Conversion 1990
31601-31602 31/6 Class 31/6 A1A-A1A Diesel Loco 2 Conversion 1999
31970 31/1 Class 31 A1A-A1A Diesel Loco 1 Conversion 1989
Profiles ?Profiles provide an overview of the histories of various types of train. Profiles that are relevant to this TOPS class/code are listed below. If no profiles are shown, try looking under the parent code (in main details section above)
Photos - Internal
There are 8 photos of this type (including any sub-codes).

Photos - External
No external photos of this item yet.
Listings
There are 608 listings (with 317 distinct numbers) for this TOPS code/class (including any sub-codes).


Notes
Note added Mon 02/11/2020 by Thomas Young
Category: Modifications/Conversions
By November 1985 there were 19 class 31s still awaiting conversion from vacuum to dual brakes.
Source: Rail Enthusiast magazine, January 1986 issue, p45

Related Information
To be added
Dimensions ?Dimensions are normally recorded against design/diagram numbers. They can be recorded against batches, lots or TOPS codes if the design/diagram is not available.
There are no dimensions recorded for this TOPS code.
Drawings ?Drawings are normally referenced to specific design/diagram numbers. They can be recorded against batches, lots or TOPS codes if the design/diagram is not available. If no drawings are listed here, try looking at related designs/diagrams (above).
There are no drawings referenced for this TOPS code.
Data History
Record added 01/01/2020 by Thomas Young
This item has not been edited.