Comparison of OO TTA tank models
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| Manufacturer | Hornby | Bachmann Branchline | Bachmann Branchline | Hornby |
| Year model introduced | 1973 | 2005 | 2023 | 2023 |
| DCC Capability | Unpowered | Unpowered | Unpowered | Unpowered |
| Bodyshell | ||||
| Bodyshells represented (of Prototypes) | ||||
| 45t TTA - Class B with conical ends | No | No |
Yes |
No |
| Detailing | ||||
| Bodyshell - factory-fitted separate details | ||||
| Body ladders |
Yes |
Yes |
Yes |
Yes |
| Filler Cap | No |
Yes |
Yes |
Yes |
| Handrails | No |
Yes |
Yes |
Yes |
| Lamp irons | No |
Yes |
Yes |
Yes |
| Wagon information panel | No | No | No |
Yes |
| Walking platforms |
Yes |
Yes |
Yes |
Yes |
| Chassis/underframe detail | ||||
| Air tank | No | No | No |
Yes |
| Brake rigging chassis |
Yes |
Yes |
Yes |
Yes |
| Footsteps | No |
Yes |
Yes |
No |
| Handbrake wheel/ lever |
Yes |
Yes |
Yes |
Yes |
| Wheel "aesthetics" | ||||
| Chemically-blackened | No | No | No |
Yes |
| Metal-pin point bearings | No |
Yes |
Yes |
Yes |
| Bufferbeam detail (pre-fitted) | ||||
| Cosmetic coupling - hook only | No |
Yes |
Yes |
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 |
| Detail pack also contains... | ||||
| Tail lamp(s) | No | No | No |
Yes |
| Mechanical | ||||
| Body Construction |
Plastic |
Plastic with metal parts |
Plastic with metal parts |
Plastic with metal parts |
| Chassis construction |
Lightweight |
Plastic & metal |
Plastic & metal |
Plastic & metal |
| Minimum radius |
Radius 1 |
Radius 1 |
Radius 1 |
Radius 1 |
| Coupling socket/mounting | ||||
| Fixed |
Yes |
No | No | No |
| NEM pockets | No |
Yes |
Yes |
Yes |
| Coupling type |
Tension lock |
Tension lock |
Tension lock |
Tension lock |
| Weighting (to assist adhesion) | ||||
| Within chassis | No |
Yes |
Yes |
No |
| Items in Stock | View | View | View | View |