Reply to "Smoking Locomotives"

Hot WaterOGR Forum Member SUPPORTING MEMBER

That "white stuff" you see is NOT necessarily "smoke"! What you see that is white is actually the steam VAPOR, and is generally visible ONLY when the outside temperature & humidity is cool enough so that the condensed VAPOR is visible. Once the outside temperature is high enough, i.e. HOT & DRY, then the exhausted steam is no longer visible, and any actual smoke from the fire is then visible as various shades of gray/black, or a light haze.

9/17/124:38 PM

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