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
Chang Da Long
MMSI 413473010
Not yet on Master's MateFlag
CHNLength
140.5 m
IMO
9471197
AIS reports
2
Chang Da Long, a craft wearing Chinese colours, measures 140.5 metres on deck. Officially she's MMSI 413473010, IMO 9471197. It's free to add Chang Da Long 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 Chang Da Long 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
Live AIS position · Jun 9, 2026 04:47 UTC
Position
22.4854° N, 113.7510° E
Status
Under way (engine)
Speed
12.1 kn
Course
353°
Crossing the South China Sea? 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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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Chang Da Long 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 Chang Da Long and switch it all on
Free to join · nothing to install to start · cancel anytime
About Chang Da Long
What kind of vessel is Chang Da Long?
Chang Da Long is a vessel flagged to China.
Where was Chang Da Long last seen?
Chang Da Long was last reported in the South China Sea on public AIS.
What is Chang Da Long's MMSI?
Chang Da Long's MMSI is 413473010. IMO 9471197.
How big is Chang Da Long?
Chang Da Long is about 140.5 m long.
Is Chang Da Long on the Master's Mate Safety Initiative Network?
Not yet. If Chang Da Long is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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