Friction Loss = CQ2L

I think I am almost half way through operator class…..which is a good thing. If there was ever an example or separation of ‘book smart’ and ‘street smart’ this class is it. It is not that the classroom is difficult but boring. You can only read so much about how to drive and operate before you need to just do it. Every truck is different. Drives different, operates different so the real teaching will come during the hands on training at the department.

But I do have to say the pumping/hydraulics section is interesting. Calculating friction loss through the hose, elevation, appliances and then determining the right pressure to ensure the front line crew as enough GPM.
Friction Loss = CQ2L (co-efficient x flow rate squared x length of hose) And then you can calculate the Pump Discharge Pressure as = NP + FL + AFL + EL