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

Josco Yongzhou

MMSI 477468600

Not yet on Master's Mate

Flag

HKG

Length

199.9 m

IMO

9872511

AIS reports

Josco Yongzhou, a craft flagged in Hong Kong, measures 199.9 metres on deck. Find her under MMSI 477468600, IMO 9872511. Josco Yongzhou can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.

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Is Josco Yongzhou 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 Josco Yongzhou 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 Josco Yongzhou 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 Josco Yongzhou and switch it all on

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About Josco Yongzhou

What kind of vessel is Josco Yongzhou?

Josco Yongzhou is a vessel flagged to Hong Kong S.A.R..

What is Josco Yongzhou's MMSI?

Josco Yongzhou's MMSI is 477468600. IMO 9872511.

How big is Josco Yongzhou?

Josco Yongzhou is about 199.9 m long.

Is Josco Yongzhou on the Master's Mate Safety Initiative Network?

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