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
Hai Yang Shi You 771
MMSI 413305440
Not yet on Master's MateFlag
CHNLength
65 m
IMO
9739070
AIS reports
2
Hai Yang Shi You 771 is a Chinese craft, 65 metres on deck. Officially she's MMSI 413305440, IMO 9739070. Hai Yang Shi You 771 belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Is Hai Yang Shi You 771 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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Wherever Hai Yang Shi You 771 roams, 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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Joining the Safety Initiative Network doesn't just put Hai Yang Shi You 771 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 Hai Yang Shi You 771 and switch it all on
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About Hai Yang Shi You 771
What kind of vessel is Hai Yang Shi You 771?
Hai Yang Shi You 771 is a vessel flagged to China.
What is Hai Yang Shi You 771's MMSI?
Hai Yang Shi You 771's MMSI is 413305440. IMO 9739070.
How big is Hai Yang Shi You 771?
Hai Yang Shi You 771 is about 65 m long.
Is Hai Yang Shi You 771 on the Master's Mate Safety Initiative Network?
Not yet. If Hai Yang Shi You 771 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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