Train Running Resistance & Davis Equation Calculator
Determine mechanical rolling resistance, aerodynamic head and skin drag, grade climbing forces, and curve resistance to calculate locomotive tractive power.
Train & Track Operating Conditions
10 ‰ = 1.0% grade
Enter 0 for tangent (straight) track
Davis Formula: R_davis = A + B·V + C·V²
A = 0.90 N/kN | B = 0.0080 N/(kN·km/h) | C = 0.0035 N/(km/h)²
Total Train Resistance Breakdown
Total Tractive Resistance
-
-
Wheel Rim Power Req.
-
-
Davis Level Track
--
Grade Climbing
--
Curve Resistance
--
Energy & Traction Summary
-
Recommended Tools & Equipment
Tested hardware and components for high reliability
100% Free Tool
Zero Sign-Up