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The most basic way the air gets fed into the firebox is simply by draft from opening the regulator and propelling the vehicle. As the steam from the cylinders is expelled through the blastpipe, it draws fresh air into the firebox with every cycle. The higher the cutoff setting the higher the draft.
The primary way to feed air to the firebox is by opening the {{pll|Regulator|regulator}} and {{pll|Cutoff|cutoff}} fully, and propelling the vehicle. As the steam is expelled from {{pll|Cylinder Cocks|cylinders}} out into the atmosphere through the chimney, with every gear cycle, it creates a vacuum in the firebox, drawing in fresh air.
Latest revision as of 00:05, 18 March 2025
The primary way to feed air to the firebox is by opening the regulator and cutoff fully, and propelling the vehicle. As the steam is expelled from cylinders out into the atmosphere through the chimney, with every gear cycle, it creates a vacuum in the firebox, drawing in fresh air.
