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
Tokuharu Maru No. 8
MMSI 431005534
Not yet on Master's MateFlag
JPNLength
82 m
IMO
9739628
AIS reports
2
Registered in Japan, Tokuharu Maru No. 8 is an 82-metre craft. On AIS she shows as MMSI 431005534, IMO 9739628. Bring Tokuharu Maru No. 8 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
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Is Tokuharu Maru No. 8 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
Live AIS position · Jun 9, 2026 23:00 UTC
Position
34.2701° N, 134.9771° E
Status
Under way (engine)
Speed
14.9 kn
Course
190°
Crossing the Sea of Japan? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Tokuharu Maru No. 8 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 Tokuharu Maru No. 8 and switch it all on
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About Tokuharu Maru No. 8
What kind of vessel is Tokuharu Maru No. 8?
Tokuharu Maru No. 8 is a vessel flagged to Japan.
Where was Tokuharu Maru No. 8 last seen?
Tokuharu Maru No. 8 was last reported in the Sea of Japan on public AIS.
What is Tokuharu Maru No. 8's MMSI?
Tokuharu Maru No. 8's MMSI is 431005534. IMO 9739628.
How big is Tokuharu Maru No. 8?
Tokuharu Maru No. 8 is about 82 m long.
Is Tokuharu Maru No. 8 on the Master's Mate Safety Initiative Network?
Not yet. If Tokuharu Maru No. 8 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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