Comparison of OO GWR Siphon G van models

Lima OO GWR Siphon G van Airfix GMR (Great Model Railways) OO GWR Siphon G van Accurascale OO GWR Siphon G van
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
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