Importance

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Abstract

A method for extinguishing a full, or substantially full, surface liquid tank fire including addressing large tank, difficult fuel, structural impediment, timing and plunge zone issues, the attack including throwing at least one primary stream over a tank wall, the stream landing with a force of impact in, and defining, a plunge zone; the method including potentially achieving flame collapse leaving a plunge zone flame and subsequently, at least for a period of time, diminishing force of impact per unit area of a primary stream upon said plunge zone flame; alternately the method includes achieving a partial flame collapse including collapse against back tank wall portions and subsequently diminishing stream impact force upon a plunge zone including moving a plunge zone forward in the tank; the method also includes extinguishing a full surface heavy liquid tank fire by teasing the fire prior to employing a non-feathered stream to create a foam blanket; the method may include restaging to create a secondary footprint, and/or coordinating the timing of addressing plunge zone, smiley face and secondary footprint issues; the method may also include teasing and/or rooster tailing structural impediments.

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First Claim