Why put sand into a steam locomotive? 🔥🚂
On oil-fired steam engines, sand was used to clean boiler tubes. The draft pulled it through the flues, scraping out soot and oil-carbon deposits.
Cleaner tubes meant better heat transfer and stronger steaming.
Source: @mala_ghazal
#SteamLocomotive #RailwayHistory #Locomotives #RailwayMaintenance #RailTech