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
Sealand Washington
MMSI 477318400
Not yet on Master's MateFlag
HKGLength
304 m
IMO
9196852
AIS reports
2
Sealand Washington is a Hong Kong craft, 304 metres from stem to stern. On AIS she shows as MMSI 477318400, IMO 9196852. Add Sealand Washington to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card
Is Sealand Washington 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 Sealand Washington 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 Sealand Washington 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 Sealand Washington and switch it all on
Free to join · nothing to install to start · cancel anytime
About Sealand Washington
What kind of vessel is Sealand Washington?
Sealand Washington is a vessel flagged to Hong Kong S.A.R..
What is Sealand Washington's MMSI?
Sealand Washington's MMSI is 477318400. IMO 9196852.
How big is Sealand Washington?
Sealand Washington is about 304 m long.
Is Sealand Washington on the Master's Mate Safety Initiative Network?
Not yet. If Sealand Washington is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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