Master Stream Reach
Reach from nozzle pressure and type.
Example
You enter
- Nozzle type smooth_bore_1_75
- Nozzle pressure (psi) 80
You get
- Typical reach 90 ft
- Base reach (ft) 90
- Nozzle type smooth_bore_1_75
Checked against published worked examples from: IFSTA / fire-stream engineering practice.
Details, formula, and sources
Formula or tableReach = published base reach for the nozzle type x sqrt(P / P_typical); smooth-bore reaction NR = 1.57 d^2 NP.
Source and editionNFPA 1965 (Standard for Fire Hose Appliances) by name; NFA training-material reach tables.
Free accessNFPA 1965 read-only at nfpa.org/freeaccess; NFA materials free at usfa.fema.gov.
What governsEstimate. AHJ and licensed fire protection engineer govern.
API field namesnozzle_type, nozzle_pressure_psi, typical_reach_ft, base_reach_ft