Main Class 50 Listing
Last Checked or Updated
08 June 2026
D449 | 50049 Defiance
Photo: K. Connolly - Birmingham New St. 11/06/1979
Loco Specific
Allocations & Sectors
Liveries
Damage & Accidents
Preservation
Photos
Loco Specific Information
Built By
English Electric at The Vulcan Foundry
Build Number
3819 / D1190
To British Rail / To Service
11.12.1968 / 11.12.1968
D449
TOPS Renumbered
15.02.1974
50049
07.10.1987
50149
Freight use with re-geared bogies
22.02.1989
50049
Time In Service
22 years, 7 months, 21 days
8,268 days
Engine Hours
7,462
Nameplate
Defiance
Fitted
02.05.1978
First Noted Working Found
Thursday
12 December 1968
Glasgow - Euston Mid- Day Scot
R.O. 480 p66
Works History & Service Working (Before & After)
1 — Crewe Works (1968)
1
Before
Works
Acceptance
Entry xx.11.1968 / Release xx.12.1968
After
2 — Crewe Works (1971)
2
Before
Works
Light Repair
Entry Prior 27.06.1971 / Release 14.08.1971
After
3 — Crewe Works (1971)
3
Before
Works
Light Repair
Entry Prior 31.10.1971 / Release Prior 12.12.1971
After
4 — Crewe Works (1974/5)
4
Before
Works
Intermediate
Entry After 22.09.1974 / Release 29.01.1975
After
5 — Doncaster Works (1979)
5
Before
Works
Intermediate
Entry Prior 25.03.1979 / Release 26.03.1979
After
6 — Doncaster Works(1983)
6
Before
Works
Refurbishment
Entry 17.01.1983 / Release 28.05.1983
After
7 — Laira Depot (1987)
7
Before
Works
Major F Exam
Entry xx.xx.xxxx / Release 07.10.1987
After
Last Passenger Duty (PD) / Last Working (LW)
PD
Thursday
01 August 1991
1V09 08:40 Waterloo - Exter St Davids
LW
Thursday
01 August 1991
12:00 Exeter St Davids - Laira Depot
Post Service
Withdrawn
01.08.1991
Condemned
16.08.1991
Identification Markings & Notes
Allocations / Sectors
Date
Area / Depot
Depot Code
Time Spent at Depot
xx.12.1968
Allocated to London Midland Stoke Division
D05
xx.05.1973
Allocated to Crewe Diesel
CD
11.05.1974
Reallocated to Bristol Bath Road
BR
07.04.1977
Reallocated to Laira
LA
Sector Code
Sector
05.1987
PXXA
Provincial
10.07.1988
DXXD
Departmental
23.04.1988
FTLL
Railfreight Chemicals
22.01.1989
DCWA
Departmental Western Region
22.02.1989
NSSA
Network SouthEast - Solent & Sarum
20.05.1990
NWXA
Network SouthEast - West of England
Liveries
Date From
Notes
11.12.1968
Standard British Rail Blue
05.1983
British Rail Blue Large Logo with Grey Roof
British Rail Blue Large Logo with Black Roof
Network South East Revised, Light Blue
Railfreight Distribution Grey
Damage / Accidents
Preservation
Preserved By
Class 50 Alliance
At
Severn Valley Railway
Photos
Standard British Rail Blue
Nameplate
Photo: