Rail Data TOPS Code/Class Details

Main Details PDF

TOPS Code/Class:	37/4
Key Photo:
Icon:
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)	LL - Long Code, Locomotives
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
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
Parent:	37
Description:	Co-Co 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:	Converted from 37/0
Date Off:
Destiny:

Sub-codes ?If this code had any sub-codes, they will be listed here.
None found

Designs/Diagrams ?Design codes and diagrams related to this code (and any sub-codes where relevant) are listed here.
1 designs/diagrams currently listed against this TOPS code/class (including any sub-codes).

Design	Class	Series	Description	Status
37-4AX	37/4	BR TOPS Loco Design Code	Class 37/4 Co-Co 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 is one batch recorded as being wholly to this TOPS code.

Numbers	Class	Design	Type	Qty	Origin	Built/Converted	Date/s	Lot
37401-37431	37/4		Class 37/4 Co-Co Diesel Loco	31	Conversion		1985-1986

Notes
No notes have been left yet. ?There may be some notes posted but which have not yet been approved.

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)

Listings
There are 92 listings (with 31 distinct numbers) for this TOPS code/class (not including any sub-codes). The most recent 50 are shown below.

Date ?The date of the listing. Newest listings are shown first.	Type ?Listings are either plain listings (reported details at a given date) or changes (changes of details on a given date). Hover over a code for the explanation.	Status ?The status of this number at (or after) the given date. Hover over a code for the explanation.	Prefix ?The prefix carried at the given date. Hover over a prefix for an explanation.	Number	TOPS	Design	Pool	Livery	Allocation	Location	Notes	?Shows the approval status of each listing. Hover over an icon for an explanation.
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37401	37/4		XHAC	BR blue large logo	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37402	37/4		XHNC	BR blue large logo	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37403	37/4		XHCC	BR blue large logo	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37405	37/4		XHAC	DRS Compass blue	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37407	37/4		XHAC	BR blue large logo	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37409	37/4		XHAC	BR blue large logo	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37418	37/4		COTS	BR blue large logo	Barrow Hill Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37419	37/4		XHSS	DRS Compass blue	Derby Railway Technical Centre			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37421	37/4		COTS	Colas Rail orange/yellow/black	Barrow Hill Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37422	37/4		XHAC	DRS blue	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37423	37/4		XHAC	DRS blue	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37424	37/4		XHAC	BR blue large logo	Carlisle Kingmoor Depot			Approved, auto/admin
01/01/2019	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37425	37/4		XHAC	DRS Compass blue	Carlisle Kingmoor Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37401	37/4				Crewe Electric Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37402	37/4				Toton Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37405	37/4				Toton Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37406	37/4				Crewe Diesel Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37410	37/4					Axiom Rail, Stoke		Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37411	37/4				Eastleigh Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37412	37/4				Carnforth Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37415	37/4				Long Marston			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37416	37/4				Eastleigh Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37417	37/4				Eastleigh Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37419	37/4				Toton Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37422	37/4				Toton Depot		Stored in Training Compound	Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37425	37/4				Toton Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37426	37/4				Crewe Diesel Depot			Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37427	37/4					Tyne Yard		Approved, auto/admin
01/2011	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37428	37/4				Long Marston			Approved, auto/admin
20/10/2010	CChange (e.g. a transfer or recoding)	AExtant, Registered, Active	Click here for more details of this prefix	37412	37/4		XHHP		Headquarters		ex BH/HNRS	Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37401	37/4	37-4AX	WKCD	EWS red/yellow	Crewe Diesel Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37402	37/4	37-4AX	WNXX	Trainload Freight (no logos)	Unallocated (EWS)	Crewe Diesel Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37403	37/4	37-4AX	WNXX	green	Unallocated (EWS)	Cardiff Canton Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37404	37/4	37-4AX	WNYX	Transrail grey	Unallocated (EWS)	Springs Branch Depot (Wigan)		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37405	37/4	37-4AX	WKMB	EWS red/yellow	Motherwell Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37406	37/4	37-4AX	WKCD	Transrail grey	Crewe Diesel Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37407	37/4	37-4AX	WNXX	Transrail grey	Unallocated (EWS)	Crewe Diesel Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37408	37/4	37-4AX	WKMB	EWS red/yellow	Motherwell Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37409	37/4	37-4AX	WNXX	Transrail grey	Unallocated (EWS)	Motherwell Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37410	37/4	37-4AX	WNXX	Transrail grey	Unallocated (EWS)	Motherwell Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37411	37/4	37-4AX	WKMB	EWS red/yellow	Motherwell Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37412	37/4	37-4AX	WKCD	Transrail grey	Crewe Diesel Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37413	37/4	37-4AX	WNXX	EWS red/yellow	Unallocated (EWS)	Bescot Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37414	37/4	37-4AX	WNXX	Regional Railways	Unallocated (EWS)	Cardiff Canton Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37415	37/4	37-4AX	WKCD	EWS red/yellow	Crewe Diesel Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37416	37/4	37-4AX	WKMB	EWS red/yellow	Motherwell Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	SExtant, Registered, Stored	Click here for more details of this prefix	37417	37/4	37-4AX	WNXX	EWS red/yellow	Unallocated (EWS)	Barry Wagon Repair Depot		Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37418	37/4	37-4AX	WKMB	EWS red/yellow	Motherwell Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37419	37/4	37-4AX	WKMB	EWS red/yellow	Motherwell Depot			Approved, auto/admin
05/2000	LListing (e.g. in an ABC)	AExtant, Registered, Active	Click here for more details of this prefix	37420	37/4	37-4AX	WKCN	Regional Railways	Toton Depot			Approved, auto/admin

Date ?The date of the listing. Newest listings are shown first.

Type ?Listings are either plain listings (reported details at a given date) or changes (changes of details on a given date). Hover over a code for the explanation.

Status ?The status of this number at (or after) the given date. Hover over a code for the explanation.

Prefix ?The prefix carried at the given date. Hover over a prefix for an explanation.

Number

TOPS

Design

Pool

Livery

Allocation

Location

Notes

?Shows the approval status of each listing. Hover over an icon for an explanation.

01/01/2019

LListing (e.g. in an ABC)

AExtant, Registered, Active

Click here for more details of this prefix

37401

37/4

XHAC

BR blue large logo

Time / Date	Edited by	Change
09:03 on Thu 29/04/2021	Thomas Young	Key photo added