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

Ryosei Maru

MMSI 667001767

Not yet on Master's Mate

Flag

SLE

Length

69 m

IMO

9132832

AIS reports

Ryosei Maru, a vessel flying the flag of Sierra Leone, measures 69 metres on deck. On AIS she appears as MMSI 667001767, IMO 9132832. Add Ryosei Maru to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

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Is Ryosei 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.

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Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Ryosei 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 Ryosei 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 Ryosei Maru and switch it all on

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About Ryosei Maru

What kind of vessel is Ryosei Maru?

Ryosei Maru is a vessel flagged to Sierra Leone.

What is Ryosei Maru's MMSI?

Ryosei Maru's MMSI is 667001767. IMO 9132832.

How big is Ryosei Maru?

Ryosei Maru is about 69 m long.

Is Ryosei Maru on the Master's Mate Safety Initiative Network?

Not yet. If Ryosei Maru is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).