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| Date built | 1957–1958 |
| Built by | Gloucester Railway Carriage and Wagon Company |
| Built at | |
| Number built | 40 |
| Status | Scrapped/Preserved |
| Family name | First generation |
| Owner | Various |
| Operated by | Various |
| Originally operated by | British Rail |
| Original owner | British Rail | Date entered service | 1957–1988 |
| Date refurbished | N/A |
| formation | 2 cars sets |
| Capacity | 52 second class seats or 12 first and 54 second |
| Predecessor | N/A |
| Sucsesser |
Specifications |
| Maximum speed | 70 mph (113 km/h) |
| Power output | 150 bhp (112 kW) per engine |
| Braking system | Vacuum |
| Safety systems | |
| Coupling system |
Screw-link couplings
British Standard gangways |
| Multiple working | |
| Engine type | Blue Square |
| Unit number | Status | Operater | Owner | Notes | |
| 50339 | Scrapped | N/A | N/A | ||
| 50340 | 50339 | Scrapped | N/A | N/A | |
| 50341 | Scrapped | N/A | N/A | ||
| 50342 | Scrapped | N/A | N/A | ||
| 50343 | Scrapped | N/A | N/A | ||
| 50344 | Scrapped | N/A | N/A | ||
| 50345 | Scrapped | N/A | N/A | ||
| 50346 | Scrapped | N/A | N/A | ||
| 50347 | Scrapped | N/A | N/A | ||
| 50348 | Scrapped | N/A | N/A | ||
| 50349 | Scrapped | N/A | N/A | ||
| 50350 | Scrapped | N/A | N/A | ||
| 50351 | Scrapped | N/A | N/A | ||
| 50352 | Scrapped | N/A | N/A | ||
| 50353 | Scrapped | N/A | N/A | ||
| 50354 | Scrapped | N/A | N/A | ||
| 50356 | Scrapped | N/A | N/A | ||
| 50357 | Scrapped | N/A | N/A | ||
| 50358 | Scrapped | N/A | N/A | ||
| 56094 | Scrapped | N/A | N/A | ||
| 56095 | Scrapped | N/A | N/A | ||
| 56096 | Scrapped | N/A | N/A | ||
| 56097 | Preserved | No Data | No Data | ||
| 56098 | Scrapped | N/A | N/A | ||
| 56099 | Scrapped | N/A | N/A | ||
| 56100 | Scrapped | N/A | N/A | ||
| 56101 | Scrapped | N/A | N/A | ||
| 56102 | Scrapped | N/A | N/A | ||
| 56103 | Scrapped | N/A | N/A | ||
| 56104 | Scrapped | N/A | N/A | ||
| 56105 | Scrapped | N/A | N/A | ||
| 56106 | Scrapped | N/A | N/A | ||
| 56107 | Scrapped | N/A | N/A | ||
| 56108 | Scrapped | N/A | N/A | ||
| 56103 | Scrapped | N/A | N/A | ||
| 56103 | Scrapped | N/A | N/A | ||
| 56109 | Scrapped | N/A | N/A | ||
| 56110 | Scrapped | N/A | N/A | ||
| 56111 | Scrapped | N/A | N/A | ||
| 56112 | Scrapped | N/A | N/A | ||
| 56113 | Scrapped | N/A | N/A | ||
| 51108 | Scrapped | N/A | N/A | ||
| 51109 | Scrapped | N/A | N/A | ||
| 51110 | Scrapped | N/A | N/A | ||
| 51111 | Scrapped | N/A | N/A | ||
| 51112 | Scrapped | N/A | N/A | ||
| 51113 | Scrapped | N/A | N/A | ||
| 51114 | Scrapped | N/A | N/A | ||
| 51115 | Scrapped | N/A | N/A | ||
| 51116 | Scrapped | N/A | N/A | ||
| 51117 | Scrapped | N/A | N/A | ||
| 51118 | Preserved | No Data | No Data | ||
| 51119 | Scrapped | N/A | N/A | ||
| 51120 | Scrapped | N/A | N/A | ||
| 51121 | Scrapped | N/A | N/A | ||
| 51122 | Scrapped | N/A | N/A | ||
| 51123 | Scrapped | N/A | N/A | ||
| 51124 | Scrapped | N/A | N/A | ||
| 51125 | Scrapped | N/A | N/A | ||
| 51126 | Scrapped | N/A | N/A | ||
| 51127 | Scrapped | N/A | N/A | ||
| 56300 | Scrapped | N/A | N/A | ||
| 56301 | Preserved | No Data | Class 56 Group | ||
| 56302 | Scrapped | N/A | N/A | ||
| 56303 | Scrapped | N/A | N/A | ||
| 56304 | Scrapped | N/A | N/A | ||
| 56305 | Scrapped | N/A | N/A | ||
| 56306 | Scrapped | N/A | N/A | ||
| 56307 | Scrapped | N/A | N/A | ||
| 56308 | Scrapped | N/A | N/A | ||
| 56309 | Scrapped | N/A | N/A | ||
| 56310 | Scrapped | N/A | N/A | ||
| 56311 | Scrapped | N/A | N/A | ||
| 56312 | Scrapped | N/A | N/A | ||
| 56313 | Scrapped | N/A | N/A | ||
| 56314 | Scrapped | N/A | N/A | ||
| 56315 | Scrapped | N/A | N/A | ||
| 56316 | Scrapped | N/A | N/A | ||
| 56317 | Scrapped | N/A | N/A | ||
| 56318 | Scrapped | N/A | N/A | ||
| 56319 | Scrapped | N/A | N/A |