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
Propane Maru No. 18
MMSI 431501275
Not yet on Master's MateFlag
JPNLength
67 m
IMO
9201126
AIS reports
2
Propane Maru No. 18, a boat wearing Japanese colours, measures 67 metres on deck. She's on record as MMSI 431501275, IMO 9201126. It's free to add Propane Maru No. 18 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card
Is Propane Maru No. 18 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 Propane Maru No. 18 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 Propane Maru No. 18 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 Propane Maru No. 18 and switch it all on
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About Propane Maru No. 18
What kind of vessel is Propane Maru No. 18?
Propane Maru No. 18 is a vessel flagged to Japan.
What is Propane Maru No. 18's MMSI?
Propane Maru No. 18's MMSI is 431501275. IMO 9201126.
How big is Propane Maru No. 18?
Propane Maru No. 18 is about 67 m long.
Is Propane Maru No. 18 on the Master's Mate Safety Initiative Network?
Not yet. If Propane Maru No. 18 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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