| The smokebox had an inherent problem in maintaining a constant vacuum. |
| Nos.70043 and 70044 were delivered with Westinghouse airbrakes fitted alongside the smokebox and with no smoke deflectors. |
| A daily examination of each smokebox netting had to be made by a boilermaker. |
| Operation probably isn't possible without a whole new boiler, and the holey smokebox will need heavy patching even if it doesn't get one. |
| No. 1057 represented the final years of steam with a Pyle National headlight centred on the smokebox door and a standard tender. |
| It followed the profile of the Belpaire firebox and extended to a curved profile forward of the smokebox front. |
