Comparison of HO 4-8-8-4 Class 4000 'Big Boy' UP models
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| Manufacturer | Rivarossi | Broadway Limited Imports |
| Year model introduced | 2009 | 2019 |
| DCC Capability | DCC Ready. 21-pin socket | DCC decoder fitted. Analogue compatible |
| Detailing | ||
| Bodyshell - factory-fitted separate details | ||
| Bell |
Yes |
No |
| Boiler supports |
Yes |
No |
| Chimney |
Yes |
No |
| Company branding |
Yes |
No |
| Drain cocks |
Yes |
No |
| Handrails |
Yes |
No |
| Headlamp |
Yes |
No |
| Injector |
Yes |
No |
| Injector pipework |
Yes |
No |
| Numberplates - plastic - pre-fitted |
Yes |
No |
| Pipe work |
Yes |
No |
| Reverser |
Yes |
No |
| Safety valve |
Yes |
No |
| Tail lamp |
Yes |
No |
| Tender ladder |
Yes |
No |
| Walking platforms |
Yes |
No |
| Whistle |
Yes |
No |
| Chassis/underframe detail | ||
| Air tank |
Yes |
No |
| Correct-thickness "stamped" rods |
Yes |
No |
| Fluted connecting rods with oily finish |
Yes |
No |
| Footsteps |
Yes |
No |
| Handbrake wheel/ lever |
Yes |
No |
| Inside valve gear (cosmetic) |
Yes |
No |
| No visible gap between front-bogie & frames |
Yes |
No |
| Pipework |
Yes |
No |
| Sprung front bogie |
Yes |
No |
| Cab, footplate & interior detail | ||
| Detailed & painted |
Yes |
No |
| Glazing |
Yes |
No |
| Tender | ||
| Has easy-to-use coupling to loco |
Yes |
No |
| Houses digital decoder |
Yes |
No |
| Houses PCB |
Yes |
No |
| Wheel "aesthetics" | ||
| Chemically-blackened |
Yes |
No |
| Painted |
Yes |
No |
| Traction tyres |
Yes |
No |
| Bufferbeam detail (pre-fitted) | ||
| Lifeguard |
Yes |
No |
| Detail pack also contains... | ||
| Branded pin badge |
Yes |
No |
| Locomotive plaque |
Yes |
No |
| Spare handrails |
Yes |
No |
| Spare wheelset |
Yes |
No |
| Mechanical | ||
| Chassis construction |
Diecast |
No |
| Loco-driven wheels (number of) |
16 wheels |
No |
| Minimum radius |
Radius 3 |
No |
| Coupling socket/mounting | ||
| Non-NEM socket |
Yes |
No |
| Coupling type |
Buckeye couplings |
No |
| Weighting (to assist adhesion) | ||
| Within chassis |
Yes |
No |
| Separating the body from the chassis |
Secured with one or more screws |
No |
| Electrical | ||
| Motor type |
5-pole with flywheel |
No |
| Motor location |
Locomotive |
No |
| Power collection |
2 rail DC |
No |
| Working lights | ||
| Directional headlights (no tail lights) |
Yes |
No |
| Headlights (independent) |
Yes |
No |
| Pickups |
7 out of 8 axles |
No |
| DCC speaker |
Provision for a speaker (dimensions unknown) |
No |
| Items in Stock | View | View |
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