A Brake Standard Open or BSO, is a type of railway carriage used by British Rail

British Rail

British Railways , which from 1965 traded as British Rail, was the operator of most of the rail transport in Great Britain between 1948 and 1997. It was formed from the nationalisation of the "Big Four" British railway companies and lasted until the gradual privatisation of British Rail, in stages...

. Both Mark 1

British Railways Mark 1

British Railways Mark 1 was the family designation for the first standardised designs of railway carriages built by British Railways. Following nationalisation in 1948, BR had continued to build carriages to the designs of the "Big Four" companies , and the Mark 1 was intended to be the...

 and Mark 2 types were built. Each consists of a standard class open passenger saloon with a centre aisle, a guard's

Conductor (transportation)

A conductor is a member of a railway train's crew that is responsible for operational and safety duties that do not involve the actual operation of the train. The title of conductor is most associated with railway operations in North America, but the role of conductor is common to railways...

 compartment with hand brake

Hand brake

In cars, the hand brake is a latching brake usually used to keep the car stationary, and in manual transmission vehicles, as an aid to starting the vehicle from stopped when going up an incline - with one foot on the clutch , the other on the accelerator In cars, the hand brake (emergency brake,...

 and a lockable luggage

Luggage

Baggage is any number of bags, cases and containers which hold a traveller's articles during transit.Luggage is more or less the same concept as "baggage", but is normally used in relation to the personal luggage of a specific person or persons Baggage is any number of bags, cases and containers...

 compartment.

A number of Mark 1 and Mark 2 BSOs were converted to Brake Standard Open (Micro-Buffet)

Brake Standard Open (Micro-Buffet)

A Brake Standard Open , often abbreviated to BSOT or BSO, is a type of railway carriage used by British Rail.These coaches were converted from a Brake Standard Open , by replacing one passenger seating bay with a counter for serving food, and space for a trolley for light refreshments...

 (BSOT), and fourteen Mark 2 BSOs were converted to Driving Brake Standard Open

Driving Brake Standard Open

A Driving Brake Standard Open or DBSO is a type of railway carriage, converted to operate as a control car. Fourteen such vehicles, numbered 9701 to 9714, were converted from Mk. 2F Brake Standard Open carriages. Modifications included adding a driving cab and TDM equipment to allow a locomotive...

 (DBSO). A number of BSO and BSOT coaches have been preserved

Heritage railway

thumb|right|the Historical [[Khyber train safari|Khyber Railway]] goes through the [[Khyber Pass]], [[Pakistan]]A heritage railway , preserved railway , tourist railway , or tourist railroad is a railway that is run as a tourist attraction, in some cases by volunteers, and...

, and some are still in use on main line charters.

Orders

Lot No.	Diagram	Mark	Built	Builder	Qty	Fleet numbers	Notes
30170	183	1	1955–1956	Doncaster	77	9200–9276	BR1 bogies
30244	183	1	1956	Doncaster	45	9277–9321	BR1 bogies
30443	183	1	1959	Gloucester Gloucester Railway Carriage and Wagon Company Gloucester Railway Carriage and Wagon Company was a railway rolling stock manufacturer based at Gloucester, England; from 1860 until 1986....	41	9322–9362	BR1 bogies
30698	184	1	1963	Wolverton	18	9363–9380	Commonwealth bogies, fluorescent lighting
30757	185	2	1966	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	36	9381–9416	B4 bogies
30777	180	2A	1967	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	9	9417–9425	B4 bogies
30788	180	2A		Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	13	9426–9438	B4 bogies
30798	186	2C	1970	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	10	9439–9448	B4 bogies
30820	186	2C	1970	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	30	9449–9478	B4 bogies
30824	187	2D	1971	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	17	9479–9495	B4 bogies
30383	188	2E	1972	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	14	9496–9509	B4 bogies
30861	189	2F	1974	Derby Derby Carriage and Wagon Works Derby Carriage and Wagon Works was built by the Midland Railway in Derby, England. The plant has been through many changes of ownership and is currently owned by Bombardier Transportation, a subsidiary of Bombardier Inc. of Canada. As of 2011 it is the only remaining passenger rolling stock...	30	9510–9539	B4 bogies