Comparison of OO GWR Siphon G van models
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| Manufacturer | Lima | Airfix GMR (Great Model Railways) | Accurascale |
| Year model introduced | 1978 | 1980 | 2023 |
| DCC Capability | Unpowered | Unpowered | Unpowered |
| Bodyshell | |||
| Bodyshells represented (of Prototypes) | |||
| GWR Siphon G - Diagram M34 | No | No |
Yes |
| GWR Siphon G - Diagram O.11 | No |
Yes |
No |
| GWR Siphon G - Diagram O.33 |
Yes |
No |
Yes |
| GWR Siphon G - Diagram O.59 | No | No |
Yes |
| GWR Siphon G - Diagram O.62 | No | No |
Yes |
| Detailing | |||
| Bodyshell - factory-fitted separate details | |||
| Coach end steps | No |
Yes |
No |
| Gangway corridor connectors |
Yes |
Yes |
Yes |
| Handrails | No |
Yes |
Yes |
| Lamp irons |
Yes |
Yes |
Yes |
| Vents | No |
Yes |
Yes |
| Chassis/underframe detail | |||
| Air tank | No | No |
Yes |
| Battery box |
Yes |
Yes |
Yes |
| Brake rigging chassis | No | No |
Yes |
| Equipment boxes | No | No |
Yes |
| Footsteps | No | No |
Yes |
| Framework |
Yes |
Yes |
Yes |
| Handbrake wheel/ lever |
Yes |
No |
Yes |
| Cab, footplate & interior detail | |||
| Glazing | No | No |
Yes |
| Wheel "aesthetics" | |||
| Chemically-blackened | No | No |
Yes |
| Bufferbeam detail (pre-fitted) | |||
| Cosmetic screw link coupling | No | No |
Yes |
| Pipework - pre-fitted to front | No | No |
Yes |
| Pipework - pre-fitted to rear | No | No |
Yes |
| Sprung buffers | No | No |
Yes |
| Mechanical | |||
| Body Construction |
Plastic |
Plastic |
Plastic with metal parts |
| Chassis construction |
Lightweight |
Lightweight |
Plastic & metal |
| Minimum radius |
Radius 2 |
Radius 2 |
Radius 2 |
| Coupling socket/mounting | |||
| Fixed |
Yes |
Yes |
No |
| NEM pockets | No | No |
Yes |
| Coupling type |
Tension lock |
Tension lock |
Tension lock |
| Weighting (to assist adhesion) | |||
| Within chassis | No | No |
Yes |
| Separating the body from the chassis |
Body clips off from chassis |
Body clips off from chassis |
Secured with one or more screws |
| Items in Stock | View | View | View |