Comparison of O Class 03 models
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| Manufacturer | Bachmann Brassworks | Heljan |
| Year model introduced | 2006 | 2020 |
| DCC Capability | DCC compatible but no socket | DCC Ready. 21-pin socket |
| Bodyshell | ||
| Bodyshells represented (of Prototypes) | ||
| Class 03 - conical exhaust |
Yes |
Yes |
| Class 03 - 'Flowerpot' exhaust |
Yes |
Yes |
| Detailing | ||
| Bodyshell - factory-fitted separate details | ||
| Bodyside Steps | No |
Yes |
| Brake pump |
Yes |
No |
| Door handles | No |
Yes |
| Etched Radiator Grille |
Yes |
Yes |
| Exhausts | No |
Yes |
| Handrails |
Yes |
Yes |
| Horn(s) |
Yes |
Yes |
| Lamp irons | No |
Yes |
| Panel cover handles |
Yes |
Yes |
| Pipe work |
Yes |
No |
| Shed plates - etched | No |
Yes |
| Vents |
Yes |
Yes |
| Chassis/underframe detail | ||
| Air tank |
Yes |
Yes |
| Correct-thickness "stamped" rods |
Yes |
Yes |
| Etched footstep guards |
Yes |
Yes |
| Footsteps |
Yes |
Yes |
| Pipework |
Yes |
Yes |
| Sand boxes | No |
Yes |
| Sanding gear | No |
Yes |
| Vacuum tank |
Yes |
Yes |
| Cab, footplate & interior detail | ||
| Detailed & painted | No |
Yes |
| Glazing | No |
Yes |
| Seating | No |
Yes |
| Window wipers | No |
Yes |
| Wheel "aesthetics" | ||
| Chemically-blackened | No |
Yes |
| Painted |
Yes |
Yes |
| Bufferbeam detail (pre-fitted) | ||
| Pipework - pre-fitted to front |
Yes |
Yes |
| Pipework - pre-fitted to rear |
Yes |
Yes |
| Sprung buffers |
Yes |
Yes |
| Mechanical | ||
| Body Construction |
Brass |
Plastic with metal parts |
| Chassis construction |
Diecast |
Diecast |
| Loco-driven wheels (number of) |
6 wheels |
6 wheels |
| Minimum radius |
3ft |
3ft |
| Coupling socket/mounting | ||
| Screw Link Couplings |
Yes |
Yes |
| Coupling type |
3-link coupling |
3-link coupling |
| Weighting (to assist adhesion) | ||
| Within chassis |
Yes |
Yes |
| Separating the body from the chassis |
Secured with one or more screws |
Secured with one or more screws |
| Electrical | ||
| Motor type |
5-pole (standard) |
5-pole with flywheel |
| Motor location |
Centre of chassis |
Centre of chassis |
| Power collection |
2 rail DC |
2 rail DC |
| Working lights | ||
| Cab light | No |
Yes |
| Directional headlights & tail lights | No |
Yes |
| Pickups |
All wheels |
All wheels |
| DCC speaker |
No provision for speaker |
Provision for 20x40mm rectangular speaker |
| Items in Stock | View | View |