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 Wang Long
MMSI 413301850
Not yet on Master's MateFlag
CHNLength
140 m
IMO
9556789
AIS reports
2
Chang Wang Long is a craft wearing Chinese colours, 140 metres on deck. She's on record as MMSI 413301850, IMO 9556789. Sign Chang Wang Long up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card
Is Chang Wang 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
Wherever Chang Wang Long 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 Chang Wang 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 Wang Long and switch it all on
Free to join · nothing to install to start · cancel anytime
About Chang Wang Long
What kind of vessel is Chang Wang Long?
Chang Wang Long is a vessel flagged to China.
What is Chang Wang Long's MMSI?
Chang Wang Long's MMSI is 413301850. IMO 9556789.
How big is Chang Wang Long?
Chang Wang Long is about 140 m long.
Is Chang Wang Long on the Master's Mate Safety Initiative Network?
Not yet. If Chang Wang Long is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.