Comparison of OO Class 27 models
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| Manufacturer | Lima | Heljan |
| Year model introduced | 1989 | 2006 |
| DCC Capability | DCC compatible but no socket. Pancake motor | DCC Ready. 8-pin socket |
| Detailing | ||
| Bodyshell - factory-fitted separate details | ||
| Exhausts | No |
Yes |
| Fan Grill (etched) | No |
Yes |
| Handrails | No |
Yes |
| Jumper cables | No |
Yes |
| Lamp irons | No |
Yes |
| Representation of internal equipment (behind grilles) | No |
Yes |
| Side grilles (etched) | No |
Yes |
| Tablet catcher recess | No |
Yes |
| Chassis/underframe detail | ||
| Battery box |
Yes |
Yes |
| Footsteps | No |
Yes |
| Fuel tank |
Yes |
Yes |
| Cab, footplate & interior detail | ||
| Detailed & painted | No |
Yes |
| Glazing |
Yes |
Yes |
| Seating | No |
Yes |
| Window wipers | No |
Yes |
| Wheel "aesthetics" | ||
| Chemically-blackened | No |
Yes |
| Bufferbeam detail (pre-fitted) | ||
| Cosmetic screw link coupling | No |
Yes |
| Lifeguard | No |
Yes |
| Sprung buffers | No |
Yes |
| Bufferbeam detail (in detailing pack) | ||
| Pipework (for front) | No |
Yes |
| Pipework (for rear) | No |
Yes |
| Snow plough |
Yes |
No |
| Detail pack also contains... | ||
| Windscreen Wipers |
Yes |
No |
| Mechanical | ||
| Body Construction |
Plastic |
Plastic with metal parts |
| Chassis construction |
Lightweight |
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 |
Tension lock |
Tension lock |
| Weighting (to assist adhesion) | ||
| Within chassis |
Yes |
Yes |
| Separating the body from the chassis |
Body clips off from chassis |
Use plastic card (credit card format ideal) to slide between lower body and chassis, then undo lugs |
| Electrical | ||
| Motor type |
Pancake |
5-pole with two flywheels |
| Motor location |
1 bogie mounted |
Centre of chassis |
| Power collection |
2 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 |
| Items in Stock | View | View |