Comparison of N GP40 EMD hood unit models
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| Manufacturer | Bachmann USA | Mehano | Bachmann USA | Atlas | Atlas | Atlas | Bachmann USA |
| Year model introduced | 1968 | 1969 | 1987 | 1996 | 2003 | 2018 | 2018 |
| DCC Capability | DCC compatible but no socket | DCC incompatible | DCC compatible but no socket | DCC compatible but no socket | DCC Ready - Manufacturer specific decoder(s) | DCC Ready - Manufacturer specific decoder(s) | DCC Ready - Manufacturer specific decoder(s) |
| Mechanical | |||||||
| Body Construction | No | No | No |
Plastic with metal parts |
Plastic with metal parts |
Plastic with metal parts |
No |
| Chassis construction | No | No | No |
Diecast |
Diecast |
Diecast |
No |
| Loco-driven wheels (number of) | No | No | No |
8 wheels |
8 wheels |
8 wheels |
No |
| Minimum radius | No | No | No |
Radius 2 |
Radius 2 |
Radius 2 |
No |
| Coupling socket/mounting | |||||||
| Non-NEM socket | No | No | No |
Yes |
Yes |
Yes |
No |
| Coupling type | No | No | No |
Knuckle Coupling |
Knuckle Coupling |
Knuckle Coupling |
No |
| Weighting (to assist adhesion) | |||||||
| Within body | No | No | No |
Yes |
Yes |
Yes |
No |
| Within chassis | No | No | No |
Yes |
Yes |
Yes |
No |
| Separating the body from the chassis | No | No | No |
Body clips off from chassis |
Body clips off from chassis |
Body clips off from chassis |
No |
| Electrical | |||||||
| Motor type | No | No | No |
5-pole with two flywheels |
5-pole with two flywheels |
5-pole with two flywheels |
No |
| Motor location | No | No | No |
Centre of chassis |
Centre of chassis |
Centre of chassis |
No |
| Power collection | No | No | No |
2 rail DC |
2 rail DC |
2 rail DC |
No |
| Working lights | |||||||
| Directional headlights & tail lights | No | No | No |
Yes |
Yes |
Yes |
No |
| Pickups | No | No | No |
All wheels |
All wheels |
All wheels |
No |
| DCC speaker | No | No | No |
No provision for speaker |
No provision for speaker |
No provision for speaker |
No |
| Items in Stock | View | View | View | View | View | View | View |
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