Hydraulics at Your Fingertips

07/30/2007
By Jeff WelleThe Hydraulics 4 Jakes (H4J) pump operator's system offers a simple, comprehensive approach to calculating fireground hydraulics. The International Fire Service Training Association's (IFSTA) friction loss equation is the firefighter's benchmark for pump proficiency. H4J is based on the IFSTA formulaic approach to pump operations and correlates remarkably well with what would be derived using the IFSTA friction loss equation, C × Q² × L, where C is the coefficient of friction, Q is the flow in gallons per minute divided by 100, and L is hose length divided by 100. The H4J system provides a simple and reliable tool that will provide accurate fireground hydraulic calculati...

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