Is this good for educators?

Yes — this version of "Fire Hose Hydraulics for a resource stage" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.

Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For Educators · Fire Hose Hydraulics

Fire Hose Hydraulics for a resource stage

Built for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs. Simulate a resource stage live below — adjust the inputs and watch it respond, right in your browser.

Fire Hose HydraulicsLive

friction loss · pump discharge pressure

Required pump discharge pressure

125psi

100

nozzle

friction

elevation

Controls

Hose diameter

Presets

Flow (GPM)

Hose length (ft)

Nozzle pressure (psi)

Elevation (ft)

Friction loss uses the fireground formula FL = C·(Q/100)²·(L/100), added to nozzle pressure and elevation head to give the required pump discharge pressure. Coefficients are standard single-line values. Verify against your department's charts.

▶ Run in Python

Data Inspector

Friction loss25 psi

Elevation0 psi

Coefficient C2

Governing equation

PDP = NP + C (\frac{Q}{100})^{2} \frac{L}{100} + 0.434 h = 100 + 25 + 0 = 125 psi

Reading this result: Friction loss is modest here, so nozzle pressure sets most of the 125-psi discharge the pump must supply.

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Frequently asked questions

Is this good for educators?: Yes — this version of "Fire Hose Hydraulics for a resource stage" is framed for educators teaching it to a class. Drop a live demo into a lecture or assign it as a shareable link — no lab installs.
Do I need to install anything?: No. It runs in any modern browser, free, with no account required.