Comparison of HO 4-8-8-4 Class 4000 'Big Boy' UP models

Rivarossi HO 4-8-8-4 Class 4000 'Big Boy' UP Broadway Limited Imports HO 4-8-8-4 Class 4000 'Big Boy' UP
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
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