Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Commercial Fishing Vessel
JOAN MARIA IV
MMSI 366861030 · Call sign WDA9062
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
26.5 m
Beam
7.6 m
Draft
3.8 m
Call sign
WDA9062
IMO
8969460
Official No.
1115727
AIS reports
1
Registered in the United States, JOAN MARIA IV is a 26.5-metre offshore fishing boat. JOAN MARIA IV has a beam of 7.6 m and a 3.8-metre draft. Find her under MMSI 366861030, call sign WDA9062, IMO 8969460. JOAN MARIA IV can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for working captains
Know where the fleet is. Get JOAN MARIA IV home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever JOAN MARIA IV roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for working captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put JOAN MARIA IV on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim JOAN MARIA IV and switch it all on
Free to join · nothing to install to start · cancel anytime
About JOAN MARIA IV
What kind of vessel is JOAN MARIA IV?
JOAN MARIA IV is a Commercial Fishing Vessel flagged to United States of America.
What is JOAN MARIA IV's MMSI?
JOAN MARIA IV's MMSI is 366861030. Call sign WDA9062. IMO 8969460.
How big is JOAN MARIA IV?
JOAN MARIA IV is about 26.5 m long, 7.6 m on the beam, drawing 3.8 m.
Is JOAN MARIA IV on the Master's Mate Safety Initiative Network?
Not yet. If JOAN MARIA IV is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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