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
Maria lV
MMSI 366861880 · Call sign WDA9143
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
28 m
Beam
8.2 m
Draft
4.1 m
Call sign
WDA9143
IMO
8974506
Official No.
1127823
AIS reports
1
On the American registry, Maria lV is a 28-metre commercial trawler. She carries a 8.2 m beam and a 4.1-metre draft. Look for MMSI 366861880, call sign WDA9143, IMO 8974506. Out where help is far away, Maria lV has the free Master's Mate Safety Initiative Network — and a fleet that answers.
Free forever · No credit card · for working captains
Know where the fleet is. Get Maria lV 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 Maria lV 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 Maria lV 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 Maria lV and switch it all on
Free to join · nothing to install to start · cancel anytime
About Maria lV
What kind of vessel is Maria lV?
Maria lV is a Commercial Fishing Vessel flagged to United States of America.
What is Maria lV's MMSI?
Maria lV's MMSI is 366861880. Call sign WDA9143. IMO 8974506.
How big is Maria lV?
Maria lV is about 28 m long, 8.2 m on the beam, drawing 4.1 m.
Is Maria lV on the Master's Mate Safety Initiative Network?
Not yet. If Maria lV is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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