Loading timer

LTSV > Rail Data > Data > Codes > TOPS List > AD21
Main Details PDF
TOPS Code/Class: AD21 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) LC - Long Code, Coaching Stock 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). A - Passenger-carrying coaches 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
Parent: AD? (Gangwayed Open Coach (2+1 seating))
Description: Mk.1 SO (Open Second)
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:
Date On:
Origins:
Date Off:
Destiny:
Key Photo:
Icon:
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.
2 designs/diagrams currently listed against this TOPS code/class (including any sub-codes).
DesignClassSeriesDescriptionStatus
AD201 BR TOPS Carriage Diagram Mk.1 Second Open (SO) TBC
AD201.1D BR TOPS Carriage Design Code 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 8 batches recorded as being wholly to this TOPS code (including any sub-codes).
Numbers Class Design Type Qty Origin Built/Converted Date/s Lot
3600-3610 AD21 AD204 Mk.1 Open Second (SO) 11 Conversion - 1981-1982
3721-3735 AD21 94 Mk.1 Open Second (SO) 15 New BR, Derby 1954 30031
4358-4362 AD21 94 Mk.1 Open Second (SO) 5 New BR, Eastleigh 1955 30067
4363-4372 AD21 94 Mk.1 Open Second (SO) 10 New BR, Eastleigh 1955 30121
4473-4487 AD21 94 Mk.1 Open Second (SO) 15 New Birmingham RC&W 1957 30227
4637 AD21 96 Prototype Open Second (SO) 1 New Birmingham RC&W 1957 30360
4779-4809 AD21 94 Mk.1 Open Second (SO) 31 New BR, York 1957 30376
4810-4829 AD21 94 Mk.1 Open Second (SO) 20 New Birmingham RC&W 1959 30473
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 2 photos of this type (including any sub-codes).

Photos - External
No external photos of this item yet.
Listings
There are 31 listings (with 29 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 / DateEdited byChange
14:39 on Sun 05/09/2021Thomas YoungKey photo added