After years of research and development, for the first time in Fire Service history, a complete wildland fire Engine Pressure (EP) hydraulics calculator is finally available. It not only accurately determines the most challenging variable of each affected section of a wildland hoselay, Friction Loss (FL), but also accurately includes Nozzle Pressure (NP), Appliance Loss (A), and (+) and (-) Head (H). This ensures the necessary Engine Pressure (EP) to create an effective fire stream is calculated in mere seconds to maintain firefighter safety at every step throughout the evolution of a wildland fire hoselay.

The development of the Android phone app and the mechanical Slide-Rule was inspired by the incredible need to provide every driver/operator of any fire apparatus engaged in wildland firefighting relief from the responsibility to accurately, yet quickly determine proper Engine Pressure (EP) when simultaneously balancing resource management and direction, incident mitigation, and crew supervision; but especially in REAL-TIME to keep up with the continuous progression of a hoselay as calculation data and results change with the addition of each 100’ length of hose extended.

Our Android app provides a complete overview of how to use the proper method for calculating engine pressure, and has calculators to help you calculate proper pressure.