This class covers the four largest areas of concern in handline attack package design: (1) nozzle design and implications: nozzle pressure, weight, stream type, reaction force, stream velocity, selecting target flow; (2) hose construction and implications: materials, weaving, construction type, inspection delivery (annual and after every use); (3) hose size and implication: target flows and tube velocity (the two things you need to know before buying hose hydraulically), adequate friction loss is not the handline’s enemy; and (4) pump panel outlet implications: design, errors, plumbing, pickup placement, foam-loop complications, and flow meters.
