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TOPS Code/Class:	AD?		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)	SC - Short 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
Description:	Gangwayed Open Coach (2+1 seating)
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.

AD11	Mk.1 FO (Open First)
AD1C
AD1D	Mk.2D FO (Open First)
AD1E	Mk.2E FO (Open First)
AD1F	Mk.2F FO (Open First)
AD1G	Mk.3a FO (Open First)
AD1H	Mk.3b FO (Open First)
AD1J	Mk.4 FO (Open First)
AD21	Mk.1 SO (Open Second)
AD2C	Mk.2c SO (Open Second)
AD2F
AD2Z	Mk.2 SO (Open Second)
AD3G
AD4Z	Observation Car (ex DMU)

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

Design	Class	Series	Description	Status
AD103		BR TOPS Carriage Diagram	Mk.1 First Open (FO)	TBC
AD105		BR TOPS Carriage Diagram	Mk.2d First Open (FO)	TBC
AD106		BR TOPS Carriage Diagram	Mk.2e First Open (FO)	TBC
AD107		BR TOPS Carriage Diagram	Mk.2f First Open (FO)	TBC
AD108		BR TOPS Carriage Diagram	Mk.3a First Open (FO)	TBC
AD110		BR TOPS Carriage Diagram	Mk.3b First Open (FO)	TBC
AD201		BR TOPS Carriage Diagram	Mk.1 Second Open (SO)	TBC
AD203		BR TOPS Carriage Diagram	Mk.2 Second Open (SO)	TBC
AD205		BR TOPS Carriage Diagram	Mk.2c Second Open (SO)	TBC
AD206		BR TOPS Carriage Diagram	Mk.2f Second Open (SO)	TBC
AD301		BR TOPS Carriage Diagram	Mk.3a Trailer Composite (TC)	TBC
AD401		BR TOPS Carriage Diagram		TBC
AD103.1Q		BR TOPS Carriage Design Code	Mk.1 First Open (FO)	TBC
AD103.1S		BR TOPS Carriage Design Code		TBC
AD103.2D		BR TOPS Carriage Design Code	Mk.1 First Open (FO)	TBC
AD103.2J		BR TOPS Carriage Design Code		TBC
AD103.2K		BR TOPS Carriage Design Code		TBC
AD103.4D		BR TOPS Carriage Design Code	Mk.1 First Open (FO)	TBC
AD103.4J		BR TOPS Carriage Design Code	Mk.1 First Open (FO)	TBC
AD103.4M		BR TOPS Carriage Design Code	Mk.1 First Open (FO)	TBC
AD103.4S		BR TOPS Carriage Design Code		TBC
AD103.4T		BR TOPS Carriage Design Code		TBC
AD103.5P		BR TOPS Carriage Design Code	Mk.1 First Open (FO)	TBC
AD104.0B		BR TOPS Carriage Design Code		TBC
AD105.0A		BR TOPS Carriage Design Code	Mk.2d First Open (FO)	TBC
AD105.1A		BR TOPS Carriage Design Code	Mk.2d First Open (FO)	TBC
AD105.1B		BR TOPS Carriage Design Code		TBC
AD105.1C		BR TOPS Carriage Design Code		TBC
AD105.2A		BR TOPS Carriage Design Code		TBC
AD106.0B		BR TOPS Carriage Design Code	Mk.2e First Open (FO)	TBC
AD106.0C		BR TOPS Carriage Design Code		TBC
AD106.0D		BR TOPS Carriage Design Code		TBC
AD106.0F		BR TOPS Carriage Design Code		TBC
AD106.1B		BR TOPS Carriage Design Code		TBC
AD106.2A		BR TOPS Carriage Design Code		TBC
AD107.1A		BR TOPS Carriage Design Code	Mk.2f First Open (FO)	TBC
AD107.1B		BR TOPS Carriage Design Code	Mk.2f First Open (FO)	TBC
AD107.1C		BR TOPS Carriage Design Code		TBC
AD109.0A		BR TOPS Carriage Design Code		TBC
AD109.0B		BR TOPS Carriage Design Code		TBC
AD109.0C		BR TOPS Carriage Design Code		TBC
AD109.0D		BR TOPS Carriage Design Code		TBC
AD111.0A		BR TOPS Carriage Design Code		TBC
AD111.0C		BR TOPS Carriage Design Code		TBC
AD112.0A		BR TOPS Carriage Design Code		TBC
AD113.0B		BR TOPS Carriage Design Code		TBC
AD114.0A		BR TOPS Carriage Design Code		TBC
AD114.0B		BR TOPS Carriage Design Code		TBC
AD114.0C		BR TOPS Carriage Design Code		TBC
AD114.0D		BR TOPS Carriage Design Code		TBC
AD201.1D		BR TOPS Carriage Design Code		TBC
AD203.0A		BR TOPS Carriage Design Code	Mk.2 Second Open (SO)	TBC
AD203.1B		BR TOPS Carriage Design Code	Mk.2 Second Open (SO)	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 39 batches recorded as being wholly to this TOPS code (including any sub-codes).

Numbers	Class	Design	Type	Qty	Origin	Built/Converted	Date/s	Lot
3000-3002	AD11	71	Mk.1 Open First (FO)	3	New	BR, York	1951	30010
3003-3019	AD11	72	Mk.1 Open First (FO)	17	New	Birmingham RC&W	1954	30008
3020-3039	AD11	73	Mk.1 Open First (FO)	20	New	BR, Doncaster	1953-1954	30042
3040-3057	AD11	73	Mk.1 Open First (FO)	28	New	BR, Doncaster	1954	30091
3058-3070	AD11	73	Mk.1 Open First (FO)	13	New	BR, Doncaster	1955	30169
3071-3080	AD11	73	Mk.1 Open First (FO)	10	New	BR, York/Doncaster	1956	30242
3081	AD11	77	Prototype Open First (FO)	1	New	Birmingham RC&W	1957	30359
3082	AD11	76	Prototype Open First (FO)	1	New	Cravens	1957	30361
3083	AD11	74	Prototype Open First (FO)	1	New	BR, Doncaster	1957	30372
3084	AD11	75	Prototype Open First (FO)	1	New	BR, Doncaster	1957	30373
3085-3094	AD11	73	Mk.1 Open First (FO)	10	New	Birmingham RC&W	1959	30472
3095-3100	AD11	73	Mk.1 Open First (FO)	6	New	Birmingham RC&W	1959	30576
3101-3103	AD11	73	Mk.1 Open First (FO)	3	New	BR, Wolverton	1961	30648
3104-3129	AD11	73	Mk.1 Open First (FO)	26	New	BR, Swindon	1962-1963	30697
3130-3151	AD11	73	Mk.1 Open First (FO)	22	New	BR, Swindon	1963	30717
3152-3169	AD1C	80	Mk.2c Open First (FO)	18	New	BR, Derby	1970	30810
3170-3216	AD1D	81	Mk.2d Open First (FO)	47	New	BR, Derby	1971-1972	30821
3221-3275	AD1E	82	Mk.2e Open First (FO)	55	New	BR, Derby	1973	30843
3276-3320	AD1F	83	Mk.2f Open First (FO)	45	New	BR, Derby	1973	30845
3321-3428	AD1F	83	Mk.2f Open First (FO)	108	New	BR, Derby	1973-1974	30859
3429-3439	AD1F	83	Mk.2f Open First (FO)	11	New	BR, Derby	1974-1975	30873
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
5229-5256	AD2Z	87	Mk.2 Open Second (SO)	28	New	BR, Derby	1966	30752
6300-6301	AD4Z		Observation Car	2	Conversion	-	1987
6400-6416	AD2C	AD205	Mk.2c Open Second	17	Conversion	-	1982-1984
6418-6465	AD2F	AD206	Mk.2f Open Second	48	Conversion	-	1985-1986
11004-11063	AD1G	AD108	Mk.3a Open First (FO)	60	New	BR, Derby	1975	30878
11064-11101	AD1H	AD109	Mk.3b Open First (FO)	38	New	BR, Derby	1985	30982
11200-11263	AD1J	AD111	Mk.4 First Open (FO)	64	New	Metro-Cammell	1989-1992	31046
11272-11276	AD1J	AD111	Mk.4 First Open (FO)	5	New	Metro-Cammell	1989-1992	31046
11905-11910	AD3G	AD301	Mk.3a Open Composite (CO)	6	Conversion	-	1986
11922	AD3G	AD301	Mk.3a Open Composite (CO)	1	Conversion	-	1986

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 960 listings (with 566 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

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This item has not been edited.