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
ST. MARY III
MMSI 366888090 · Call sign WDB3522
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
26.9 m
Beam
7.9 m
Draft
3.8 m
Call sign
WDB3522
IMO
8983947
Official No.
1134740
AIS reports
1
ST. MARY III is an American commercial trawler — 26.9 metres overall. ST. MARY III has a 7.9 m beam and a 3.8-metre draft. On AIS she shows as MMSI 366888090, call sign WDB3522, IMO 8983947. Sign ST. MARY III up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for working captains
Know where the fleet is. Get ST. MARY III 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 ST. MARY III 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 ST. MARY III 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 ST. MARY III and switch it all on
Free to join · nothing to install to start · cancel anytime
About ST. MARY III
What kind of vessel is ST. MARY III?
ST. MARY III is a Commercial Fishing Vessel flagged to United States of America.
What is ST. MARY III's MMSI?
ST. MARY III's MMSI is 366888090. Call sign WDB3522. IMO 8983947.
How big is ST. MARY III?
ST. MARY III is about 26.9 m long, 7.9 m on the beam, drawing 3.8 m.
Is ST. MARY III on the Master's Mate Safety Initiative Network?
Not yet. If ST. MARY III is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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