Maritime Duty to Assist & VHF Distress Simulator

SEPARATION: 11.23 NM

VHF LOS RANGE: 13.78 NM

IN VHF RANGE: YES

INTERCEPT TIME: 33.7 MIN

Scenario Presets

Drag markers on the chart or adjust antenna elevations and environmental sea states to test legal obligations.

SOLAS & UNCLOS Legal Assessment

Under SOLAS Chapter V Regulation 33 & UNCLOS Art 98, master is obligated to render assistance as vessel is within VHF range, intercept time is <1 hr, and sea state 3 poses low risk to responding vessel.

VHF Radio Horizon

13.78 NM

Direct Intercept

33.7 min

Vessel Separation

11.23 NM

Sea State Risk

LOW (Douglas 3)

Distress Vessel Parameters M/V Northern Drift

Antenna Height (ft): 10 ft

Drift Speed (knots): 2.5 kts

Drift Heading (°): 180°

Responding Yacht Parameters M/Y Pacific Explorer

Antenna Height (ft): 65 ft

Max Cruising Speed (kts): 20 kts

Sea State (Douglas Scale): 3 (Moderate)

State: Hydrated & Active