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.
Public Vessel, Unclassified
Margaret M
MMSI 367316350 · Call sign WBN3004
Not yet on Master's MateType
Public Vessel, Unclassified
Flag
USALength
25 m
Beam
4.2 m
Draft
2 m
Call sign
WBN3004
IMO
8841929
Official No.
589281
AIS reports
3
Margaret M, an American vessel, measures 25 metres on deck. Margaret M has a beam measuring 4.2 metres and a 2 m draft. Officially she's MMSI 367316350, call sign WBN3004, IMO 8841929. The Master's Mate Safety Initiative Network welcomes Margaret M — free to join, cruiser-run, and always on watch.
Free forever · No credit card
Is Margaret M your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Margaret M 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Margaret M on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Margaret M and switch it all on
Free to join · nothing to install to start · cancel anytime
About Margaret M
What kind of vessel is Margaret M?
Margaret M is a Public Vessel, Unclassified flagged to United States of America.
What is Margaret M's MMSI?
Margaret M's MMSI is 367316350. Call sign WBN3004. IMO 8841929.
How big is Margaret M?
Margaret M is about 25 m long, 4.2 m on the beam, drawing 2 m.
Is Margaret M on the Master's Mate Safety Initiative Network?
Not yet. If Margaret M is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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