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Comparison of OO Class 20 models

Hornby Dublo OO Class 20 Hornby Dublo OO Class 20 Lima OO Class 20 Bachmann Branchline OO Class 20 Lima OO Class 20 Bachmann Branchline OO Class 20 Bachmann Branchline OO Class 20
Manufacturer Hornby Dublo Hornby Dublo Lima Bachmann Branchline Lima Bachmann Branchline Bachmann Branchline
Year model introduced 1958 1977 1984 2004 2008 2008 2021
DCC Capability DCC incompatible DCC incompatible DCC compatible but no socket. Pancake motor DCC Ready. 8-pin socket DCC Ready. 8-pin socket DCC Ready. 21-pin socket DCC Ready. PLuX22 socket
Bodyshell
Bodyshells represented (of Prototypes)
Class 20 - Headcode boxes No No Yes
Yes
Yes
Yes
No
Class 20 - Headcode discs Yes
Yes
Yes
Yes
Yes
Yes
No
Class 20/3 - Flat front with WiPac headlights No No No No No No Yes
Detailing
Bodyshell - factory-fitted separate details
Body ladders Yes
Yes
No No No No No
Door handles No No No No No No Yes
Fan Grill (etched) No No No Yes
No Yes
Yes
Fan(s) No No No Yes
No Yes
Yes
Handrails Yes
Yes
Yes
Yes
Yes
Yes
Yes
High intensity headlight No No Yes
No Yes
Yes
No
Jumper cables No No No No No Yes
No
Lamp irons Yes
No No Yes
No Yes
Yes
Nameplates - etched - require fitting No No No No No Yes
No
Panel cover handles No No No No No No Yes
Radio antenna No No No No No No Yes
Side grilles (etched) No No No No No No Yes
Tablet catcher equipment No No No Yes
No Yes
No
Tablet catcher recess No No No Yes
No Yes
No
Chassis/underframe detail
Battery box No No Yes
Yes
Yes
Yes
Yes
Footsteps No No No Yes
No Yes
Yes
Fuel tank Yes
No No No No Yes
Yes
Pipework No No No No No Yes
Yes
Sanding gear No No No Yes
No Yes
Yes
Bodyshell - separately-fitted details - in detailing pack (where applicable)
Headcode discs No No No Yes
No Yes
No
Cab, footplate & interior detail
Detailed & painted No No No Yes
No Yes
Yes
Glazing Yes
No Yes
Yes
Yes
Yes
Yes
Window wipers No No No Yes
No Yes
Yes
Wheel "aesthetics"
Chemically-blackened No No No Yes
Yes
Yes
Yes
Nickel-plated Yes
Yes
No No No No No
Painted Yes
No No No No No No
Traction tyres Yes
Yes
Yes
No Yes
No No
Bufferbeam detail (pre-fitted)
Cosmetic coupling - hook only Yes
No Yes
Yes
No Yes
Yes
Lifeguard No No No No No No Yes
Pipework - pre-fitted to rear No No No No No No Yes
Sprung buffers No No No Yes
No Yes
Yes
Bufferbeam detail (in detailing pack)
Cosmetic coupling No No No Yes
No Yes
Yes
NEM Couplings No No No No No No Yes
Pipework (for front) No No No Yes
No Yes
Yes
Pipework (for rear) No No No Yes
No Yes
No
Snow plough No No No No No Yes
Yes
Mechanical
Body Construction Plastic with metal parts
No Plastic
Plastic with metal parts
Plastic
Plastic with metal parts
Plastic with metal parts
Chassis construction Diecast
Diecast
Lightweight
Diecast
Lightweight
Diecast
Heavy diecast
Loco-driven wheels (number of) 4 wheels
4 wheels
4 wheels
8 wheels
4 wheels
8 wheels
8 wheels
Minimum radius Radius 1
Radius 1
Radius 2
Radius 2
Radius 2
Radius 2
Radius 2
Coupling socket/mounting
Fixed Yes
Yes
Yes
No No No No
NEM pockets No No No Yes
Yes
Yes
Yes
Coupling type Hornby Dublo/ Peco "Simplex" coupling
Tension lock
Tension lock
Tension lock
Tension lock
Tension lock
Tension lock
Weighting (to assist adhesion)
Within chassis Yes
Yes
Yes
Yes
Yes
Yes
Yes
Separating the body from the chassis Secured with one or more screws
Secured with one or more screws
Body clips off from chassis
Secured with one or more screws
Secured with one or more screws
Secured with one or more screws
Secured with one or more screws
Electrical
Motor type 3-pole
3-pole
Pancake
5-pole (standard)
3-pole
5-pole (standard)
5-pole with two flywheels
Motor location 1 bogie mounted
1 bogie mounted
1 bogie mounted
Centre of chassis
1 bogie mounted
Locomotive
Centre of chassis
Power collection 2 rail DC
2 rail DC
2 rail DC
2 rail DC
2 rail DC
2 rail DC
2 rail DC
Working lights
Cab light No No No No No No Yes
Directional headlights & tail lights No No No No No No Yes
Headlights (independent) No No No No No No Yes
Tail lights (independent) No No No No No No Yes
Pickups Unpowered bogie only
Unpowered bogie only
Unpowered bogie only
All wheels
All wheels
All wheels
All wheels
DCC speaker No provision for speaker
No provision for speaker
No provision for speaker
No provision for speaker
Provision for 28mm round speaker
Provision for 15x11mm rectangular speaker
Pre-fitted
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