Comparison of OO Class 90 models
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| Manufacturer | Hornby | Hornby | Hornby | Bachmann Branchline |
| Year model introduced | 1988 | 2004 | 2008 | 2019 |
| DCC Capability | Motor fitted but no DCC socket. Ringfield motor | DCC compatible but no socket | DCC Ready. 8-pin socket | DCC Ready. 21-pin socket |
| Detailing | ||||
| Bodyshell - factory-fitted separate details | ||||
| Door handles | No | No | No |
Yes |
| Etched horn grille | No | No | No |
Yes |
| Horn(s) | No | No | No |
Yes |
| Lamp irons | No | No | No |
Yes |
| Nameplates - etched - pre-fitted | No | No | No |
Yes |
| Pantograph - Brecknell Willis high-speed |
Yes |
Yes |
Yes |
Yes |
| Radio antenna | No | No | No |
Yes |
| Roof-mounted electrical components |
Yes |
Yes |
Yes |
Yes |
| Side grilles (etched) | No | No | No |
Yes |
| Chassis/underframe detail | ||||
| Battery box |
Yes |
Yes |
Yes |
Yes |
| Electrical equipment |
Yes |
Yes |
Yes |
Yes |
| Pipework | No | No | No |
Yes |
| Sand boxes | No | No | No |
Yes |
| Sanding gear | No | No | No |
Yes |
| Cab, footplate & interior detail | ||||
| Detailed & painted | No | No | No |
Yes |
| Glazing |
Yes |
Yes |
Yes |
Yes |
| Seating | No | No | No |
Yes |
| Window wipers | No | No | No |
Yes |
| Wheel "aesthetics" | ||||
| Chemically-blackened |
Yes |
Yes |
Yes |
Yes |
| Compensated axles | No | No | No |
Yes |
| Painted | No | No | No |
Yes |
| Bufferbeam detail (pre-fitted) | ||||
| Cosmetic buckeye coupling | No | No | No |
Yes |
| Electric train heating box/ pipes | No | No | No |
Yes |
| Front valance |
Yes |
Yes |
Yes |
Yes |
| Multiple working sockets/ pipes | No | No | No |
Yes |
| Pipework - pre-fitted to front | No | No | No |
Yes |
| Pipework - pre-fitted to rear | No | No | No |
Yes |
| Sprung buffers | No | No | No |
Yes |
| Bufferbeam detail (in detailing pack) | ||||
| Cosmetic coupling | No | No | No |
Yes |
| NEM Couplings | No | No | No |
Yes |
| Mechanical | ||||
| Body Construction |
Plastic with metal parts |
Plastic with metal parts |
Plastic with metal parts |
Plastic with metal parts |
| Working cosmetic features | ||||
| Pantograph (collects DC current from catenary) |
Yes |
No | No | No |
| Pantograph (servo-powered motor to raise or lower) | No | No | No |
Yes |
| Pantograph (Unpowered but poseable) | No |
Yes |
Yes |
No |
| Chassis construction |
Lightweight |
Lightweight |
Lightweight |
Heavy diecast |
| Loco-driven wheels (number of) |
4 wheels |
4 wheels |
4 wheels |
8 wheels |
| Minimum radius |
Radius 1 |
Radius 1 |
Radius 1 |
Radius 2 |
| Coupling socket/mounting | ||||
| Fixed |
Yes |
Yes |
No | No |
| NEM pockets | No | No |
Yes |
Yes |
| Coupling type |
Tension lock |
Tension lock |
Tension lock |
Tension lock |
| Weighting (to assist adhesion) | ||||
| Within chassis |
Yes |
Yes |
Yes |
Yes |
| Separating the body from the chassis |
Body clips off from chassis |
Body clips off from chassis |
Body clips off from chassis |
Secured with one or more screws |
| Electrical | ||||
| Motor type |
Ringfield |
5-pole (standard) |
5-pole (standard) |
5-pole with two flywheels |
| Motor location |
1 bogie mounted |
1 bogie mounted |
1 bogie mounted |
Centre of chassis |
| Power collection |
2 rail DC |
2 rail DC |
2 rail DC |
2 rail DC |
| Working lights | ||||
| Cab light | No | No | No |
Yes |
| Directional headlights & tail lights | No | No | No |
Yes |
| Headlights (independent) | No | No | No |
Yes |
| Tail lights (independent) | No | No | No |
Yes |
| Pickups |
Power bogie only |
Power bogie only |
Power bogie only |
All wheels |
| DCC speaker |
No provision for speaker |
No provision for speaker |
No provision for speaker |
Pre-fitted |
| Items in Stock | View | View | View | View |