Backcountry Engineering & Safety Utilities
BC Offroad & FSR Tools Suite
Field-ready calculators for tire air-down PSI, BC Resource Road (RR/LAD) VHF channels, and daylight/winch recovery windows.
Tool 01 • Suspension & Fuel
Tire Air-Down PSI & Fuel Range Estimator
Calculate optimal trail PSI based on rig weight, tire load range (SL, C, D, E), beadlocks, and terrain surface, plus low-range fuel consumption across steep BC grades.
Launch Calculator →
Tool 02 • VHF Comms
BC Resource Road (RR & LAD) Radio Reference
Complete frequency table for BC Resource Roads (`RR-1` through `RR-35`), `LAD-1` (`154.100 MHz`), GMRS convoy channels, and standard KM marker callout protocols.
Open Frequency Directory →
Tool 03 • Solar & SAR
Daylight, Civil Dusk & Recovery Clock
Compute exact canyon shadow turnaround times, headlamp recovery cutoffs, and civil dusk for any BC FSR coordinate on any date.
Open Daylight Clock →