CURRENT: 1.8 m/s | Fd: 194.4 N | DRIFT: 0.0 m
• Click/Drag riverbank or victim to adjust distance
STANDBY
Hydrodynamic Telemetry & Fatigue Engine
Fd = ½ ρ v² Cd A
Fluid Drag Force (Fd)
194.4 N
Exponential scaling (v²)
Rescuer Fatigue Limit
1.8 min
Until metabolic exhaustion
Downstream Drift
28.4 m
Carry before bank contact
Extraction Success
94%
Low Rescuer Risk
Recommended Action:
Throw flotation device with tether before entering water. Rescuer stays anchored safely on bank.
Hydraulic Reality: Doubling current speed (1.0 → 2.0 m/s) quadruples fluid drag force (400%). In moving water over 1.5 m/s, swimming against current burns metabolic glycogen in under 120 seconds.