Comparison of OO Class 28 models

Hornby Dublo OO Class 28 Heljan OO Class 28
Manufacturer Hornby Dublo Heljan
Year model introduced 1961 2011
DCC Capability DCC incompatible DCC Ready. 8-pin socket
Detailing
Bodyshell - factory-fitted separate details
Fan Grill (etched) No Yes
Handrails No Yes
Lamp irons No Yes
Vents No Yes
Chassis/underframe detail
Battery box Yes
Yes
Engine pipework No Yes
Footsteps Yes
No
Fuel tank No Yes
Pipework No Yes
Sanding gear No Yes
Bodyshell - separately-fitted details - in detailing pack (where applicable)
Headcode discs No Yes
Cab, footplate & interior detail
Crew communication doors No Yes
Detailed & painted No Yes
Glazing Yes
Yes
Seating No Yes
Window wipers No Yes
Wheel "aesthetics"
Chemically-blackened No Yes
Nickel-plated Yes
No
Bufferbeam detail (pre-fitted)
Cosmetic screw link coupling No Yes
Multiple working sockets/ pipes No Yes
Pipework - pre-fitted to front No Yes
Pipework - pre-fitted to rear No Yes
Sprung buffers No Yes
Mechanical
Body Construction Diecast
Plastic with metal parts
Chassis construction Diecast
Heavy diecast
Loco-driven wheels (number of) 4 wheels
8 wheels
Minimum radius Radius 2
Radius 2
Coupling socket/mounting
Fixed Yes
No
NEM pockets No Yes
Coupling type Hornby Dublo/ Peco "Simplex" coupling
Tension lock
Weighting (to assist adhesion)
Within chassis Yes
Yes
Separating the body from the chassis Secured with one or more screws
Use plastic card (credit card format ideal) to slide between lower body and chassis, then undo lugs
Electrical
Motor type Ringfield
5-pole with two flywheels
Motor location 1 bogie mounted
Centre of chassis
Power collection 2 or 3 rail DC
2 rail DC
Working lights
Directional headlights & tail lights No Yes
Pickups Unpowered bogie only
All wheels
DCC speaker No provision for speaker
Provision for 23mm round speaker
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