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
Horai Maru No. 28
MMSI 431500341
Not yet on Master's MateFlag
JPNLength
74 m
IMO
9133056
AIS reports
2
Horai Maru No. 28 is a vessel wearing Japanese colours, spanning 74 metres. She broadcasts as MMSI 431500341, IMO 9133056. Claim Horai Maru No. 28 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
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Is Horai Maru No. 28 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 Horai Maru No. 28 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 Horai Maru No. 28 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 Horai Maru No. 28 and switch it all on
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About Horai Maru No. 28
What kind of vessel is Horai Maru No. 28?
Horai Maru No. 28 is a vessel flagged to Japan.
What is Horai Maru No. 28's MMSI?
Horai Maru No. 28's MMSI is 431500341. IMO 9133056.
How big is Horai Maru No. 28?
Horai Maru No. 28 is about 74 m long.
Is Horai Maru No. 28 on the Master's Mate Safety Initiative Network?
Not yet. If Horai Maru No. 28 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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