LMS steam fireman training film Little & Often

[@themanformerlyknownascomme777]

interestingly, "secondary air" was pretty exclusive to British engines, in North America, the larger loading gauge meant a larger firebox which allowed for more time for the gasses to burn and the larger cylinders and tubes also meant a far more violent draft meaning that the primary air source would provide more then enough oxygen that a secondary air source was generally not needed.

[@billyawombat]

I enjoyed this, is was a new incite to inside the stream train and how it ran...

[@KhatotsToys]

cool.

[@Duchy3168]

Do you know what year this was made?