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.
Unclassified
NO. 53
MMSI 366874720 · Call sign WCY6509
Not yet on Master's MateType
Unclassified
Flag
USALength
48.3 m
Beam
18.3 m
Draft
3.1 m
Call sign
WCY6509
Official No.
566581
AIS reports
1
On the American registry, NO. 53 is a 48.3-metre vessel. Her hull carries a 18.3 m beam and a draft of 3.1 m. She's listed under MMSI 366874720, call sign WCY6509. Join NO. 53 to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is NO. 53 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 NO. 53 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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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put NO. 53 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 NO. 53 and switch it all on
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About NO. 53
What kind of vessel is NO. 53?
NO. 53 is a Unclassified flagged to United States of America.
What is NO. 53's MMSI?
NO. 53's MMSI is 366874720. Call sign WCY6509.
How big is NO. 53?
NO. 53 is about 48.3 m long, 18.3 m on the beam, drawing 3.1 m.
Is NO. 53 on the Master's Mate Safety Initiative Network?
Not yet. If NO. 53 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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