British Rail Class 204
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The British Rail Class 204 designation has been used twice for two different types of diesel-electric multiple units.
The original units, numbered in the range 1119-1122, were two-car versions of the Class 205 '3H' units, and were classified as 2H under the old system. Three of the four units were reformed in 1979 with the addition of centre trailers, and thus were reclassified as Class 205 (or 3H). The fourth unit was converted into a 3T set (see below).
In 1979, four units were converted from Class 205 units, by reforming the ex-2EPB driving trailers from redundant Class 206 units. These new units, also classified as 3T, were renumbered into the range 1401-1404. In 1986, the units were renumbered to 204001-004 to conform with the TOPS numbering system.
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[edit] Technical details
Power car (one per set)
- Introduced: 1957
- Weight: 56 tons
- Engine: English Electric 4-cylinder type 4SRKT Mark II of 600 bhp at 850 rpm
- Transmission: Electric, two English Electric traction motors
- Maximum tractive effort: Not known
- Driving wheel diameter: Not known
- Coupling code: Not known
- Train heating: Electric
[edit] Fleet Details
| Key: | Reclassified | Reformed | Scrapped |
|---|
Original Class 204 (2H) Units
| Unit Number | DMBSO | DTCsoL | Disbanded | Status |
|---|---|---|---|---|
| 1119 | 60118 | 60818 | 1979 | Reclassified as 3H (unit 1119) with addition of TSO 60653 |
| 1120 | 60119 | 60819 | 1979 | Reclassified as 3H (unit 1120) with addition of TSO 60652 |
| 1121 | 60120 | 60820 | 1979 | Reclassified as 3H (unit 1108) with addition of TSO 60657 |
| 1122 | 60121 | 60821 | 1979 | Converted to 3T unit 1402 with addition of DTSso 77508 |
Reformed Class 204 (3T) Units
| Unit Number | DMBSO | DTSso | DTCsoL | Withdrawn | Status | ||
|---|---|---|---|---|---|---|---|
| New | Old | ex-Cl.205 | |||||
| 204001 | 1401 | 1108 | 60107 | 77500 | 60807 | ? | Scrapped |
| 204002 | 1402 | 1122 | 60121 | 77508 | 60821 | ? | Scrapped |
| 204003 | 1403 | 1103 | 60102 | 77507 | 60802 | ? | Scrapped |
| 204004 | 1404 | 1104 | 60103 | 77503 | 60803 | ? | Scrapped |
[edit] Preservation
Of the original 2H units, a single driving trailer has been preserved.
- 205008 (ex-1121) - DTCsoL 60820 - Hastings Diesels at St Leonards-on-Sea
None of the reformed 3T units was preserved.
