Rail Data TOPS Code/Class Details

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TOPS Code/Class:	37		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:	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:	Reclassified (TOPS)
Date Off:
Destiny:
Key Photo:
Icon:

Sub-codes ?If this code had any sub-codes, they will be listed here.

37/0	Co-Co Diesel Locomotive
37/3	Co-Co Diesel Locomotive
37/4	Co-Co Diesel Locomotive
37/5	Co-Co Diesel Locomotive
37/6	Co-Co Diesel Locomotive
37/7	Co-Co Diesel Locomotive
37/9	Co-Co Diesel Locomotive

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

Design	Class	Series	Description	Status
37-0AV	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0BV	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0CX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0DX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0EX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0FV	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0GX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0HV	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0IV	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0JX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0KX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0MX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0NX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-0PX	37/0	BR TOPS Loco Design Code	Class 37/0 Co-Co Diesel Loco	TBC
37-3AX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-3BX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-3CX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-3DX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-3EX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-3FX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-3GX	37/3	BR TOPS Loco Design Code	Class 37/3 Co-Co Diesel Loco	TBC
37-4AX	37/4	BR TOPS Loco Design Code	Class 37/4 Co-Co Diesel Loco	TBC
37-5AX	37/5	BR TOPS Loco Design Code	Class 37/5 Co-Co Diesel Loco	TBC
37-5BX	37/5	BR TOPS Loco Design Code	Class 37/5 Co-Co Diesel Loco	TBC
37-5CX	37/5	BR TOPS Loco Design Code	Class 37/5 Co-Co Diesel Loco	TBC
37-5DX	37/5	BR TOPS Loco Design Code	Class 37/5 Co-Co Diesel Loco	TBC
37-5FX	37/5	BR TOPS Loco Design Code		TBC
37-6AA	37/6	BR TOPS Loco Design Code	Class 37/6 Co-Co Diesel Loco	TBC
37-7AX	37/7	BR TOPS Loco Design Code	Class 37/7 Co-Co Diesel Loco	TBC
37-7BX	37/7	BR TOPS Loco Design Code	Class 37/7 Co-Co Diesel Loco	TBC
37-7CX	37/7	BR TOPS Loco Design Code	Class 37/7 Co-Co Diesel Loco	TBC
37-7DX	37/7	BR TOPS Loco Design Code	Class 37/7 Co-Co Diesel Loco	TBC
37-7EX	37/7	BR TOPS Loco Design Code	Class 37/7 Co-Co Diesel Loco	TBC
37-7GA	37/7	BR TOPS Loco Design Code	Class 37/7 Co-Co Diesel Loco	TBC
37-9AX	37/9	BR TOPS Loco Design Code	Class 37/9 Co-Co Diesel Loco	TBC
37-9BX	37/9	BR TOPS Loco Design Code	Class 37/9 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 are 19 batches recorded as being wholly to this TOPS code (including any sub-codes).

Numbers	Class	Design	Type	Qty	Origin	Built/Converted	Date/s	Lot
37001-37308	37		Class 37 Co-Co Diesel Loco	308	Renumbered		1974
37271-37274 (2)	37		Class 37 Co-Co Diesel Loco	4	Renumbered		1989
37310-37314	37		Class 37 Co-Co Diesel Loco	5	Conversion		1986
37320-37326	37		Class 37 Co-Co Diesel Loco	7	Conversion		1986
37330-37335	37		Class 37 Co-Co Diesel Loco	6	Conversion		1994
37340-37341	37		Class 37 Co-Co Diesel Loco	2	Conversion		1994
37343-37345	37		Class 37 Co-Co Diesel Loco	3	Conversion		1994
37350-37359	37		Class 37 Co-Co Diesel Loco	10	Conversion		1988-1989
37370-37382	37		Class 37 Co-Co Diesel Loco	13	Conversion		1988-1989
37383-37384	37		Class 37 Co-Co Diesel Loco	2	Conversion		1998
37401-37431	37/4		Class 37/4 Co-Co Diesel Loco	31	Conversion		1985-1986
37501-37521	37/5		Class 37 Co-Co Diesel Loco	21	Conversion		1986-1988
37601-37612	37		Class 37 Co-Co Diesel Loco	12	Conversion		1995-1996
37667-37699	37		Class 37 Co-Co Diesel Loco	33	Conversion		1985-1988
37701-37719	37/7		Class 37 Co-Co Diesel Loco	19	Conversion		1986-1989
37796-37799	37		Class 37 Co-Co Diesel Loco	4	Conversion		1986
37800-37803	37		Class 37 Co-Co Diesel Loco	4	Conversion		1986
37883-37899	37		Class 37 Co-Co Diesel Loco	17	Conversion		1986-1988
37901-37906	37/9		Class 37/9 Co-Co Diesel Loco	6	Conversion		1986-1987

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 23 photos of this type (including any sub-codes). The 10 most recently added are shown below.

Photos - External
No external photos of this item yet.

Listings
There are 1210 listings (with 515 distinct numbers) for this TOPS code/class (including any sub-codes).

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

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

Record edited 1 time.

Time / Date	Edited by	Change
09:06 on Thu 08/04/2021	Thomas Young	Key photo changed