Hornby R3746 BR, Class 31, A1A-A1A, 31102 - Era 7
| Length | 225mm |
| DCC Type | DCC Ready |
| Period | Era 7/8 |
| Operator/Livery | BR Blue |
| Class | Class 31 |
| Designer | Brush Traction |
| Entered Service | 1960 |
| Minimum Curve | R2 |
| Age Suitability | 14+ |
| Motor | 5 Pole Skew Wound |
| Wheel Configuration | A1A-A1A |