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Comparison of OO 21 ton mineral hopper BR/ LNER models
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| Manufacturer | Hornby Dublo | Airfix GMR (Great Model Railways) | Hornby Dublo | Airfix GMR (Great Model Railways) | Airfix GMR (Great Model Railways) | Hornby |
| Year model introduced | 1963 | 1980 | 1995 | 1997 | 2004 | 2015 |
| DCC Capability | Unpowered | Unpowered | Unpowered | Unpowered | Unpowered | Unpowered |
| Detailing | ||||||
| Chassis/underframe detail | ||||||
| Brake rigging chassis |
Yes |
Yes |
Yes |
Yes |
Yes |
No |
| Mechanical | ||||||
| Chassis construction |
Diecast |
Lightweight |
Diecast |
Lightweight |
Lightweight |
No |
| Minimum radius |
Radius 1 |
Radius 1 |
Radius 1 |
Radius 1 |
Radius 1 |
No |
| Coupling socket/mounting | ||||||
| Fixed |
Yes |
No |
Yes |
No | No | No |
| Non-NEM socket | No |
Yes |
No |
Yes |
Yes |
No |
| Coupling type |
Peco style |
Tension lock |
Peco style |
Tension lock |
Tension lock |
No |
| Items in Stock | View | View | View | View | View | View |