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.
Vessel
Tatsumi Maru
MMSI 667001892
Not yet on Master's MateFlag
SLELength
69 m
IMO
9041576
AIS reports
2
Tatsumi Maru, a craft flying the flag of Sierra Leone, measures 69 metres on deck. She broadcasts as MMSI 667001892, IMO 9041576. Give Tatsumi Maru the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card
Is Tatsumi Maru 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 Tatsumi Maru 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 Tatsumi Maru 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 Tatsumi Maru and switch it all on
Free to join · nothing to install to start · cancel anytime
About Tatsumi Maru
What kind of vessel is Tatsumi Maru?
Tatsumi Maru is a vessel flagged to Sierra Leone.
What is Tatsumi Maru's MMSI?
Tatsumi Maru's MMSI is 667001892. IMO 9041576.
How big is Tatsumi Maru?
Tatsumi Maru is about 69 m long.
Is Tatsumi Maru on the Master's Mate Safety Initiative Network?
Not yet. If Tatsumi Maru is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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