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 640
MMSI 413304790
Not yet on Master's MateFlag
CHNLength
81.2 m
IMO
9743796
AIS reports
2
On the Chinese registry, Hai Yang Shi You 640 is an 81.2-metre craft. She's listed under MMSI 413304790, IMO 9743796. Hai Yang Shi You 640 can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card
Is Hai Yang Shi You 640 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 Hai Yang Shi You 640 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 Hai Yang Shi You 640 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 640 and switch it all on
Free to join · nothing to install to start · cancel anytime
About Hai Yang Shi You 640
What kind of vessel is Hai Yang Shi You 640?
Hai Yang Shi You 640 is a vessel flagged to China.
What is Hai Yang Shi You 640's MMSI?
Hai Yang Shi You 640's MMSI is 413304790. IMO 9743796.
How big is Hai Yang Shi You 640?
Hai Yang Shi You 640 is about 81.2 m long.
Is Hai Yang Shi You 640 on the Master's Mate Safety Initiative Network?
Not yet. If Hai Yang Shi You 640 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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