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.
Recreational
HALCYON
MMSI 368272790 · Call sign WDN3558
Not yet on Master's MateType
Recreational
Flag
USALength
11.9 m
Beam
4 m
Draft
1.2 m
Call sign
WDN3558
Official No.
1246193
Hull ID
CTV39001E213
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
25
HALCYON flies the American flag — an 11.9-metre recreational vessel. Below, she has a 4 m beam and a draft measuring 1.2 metres. On AIS she shows as MMSI 368272790, call sign WDN3558. HALCYON is exactly the kind of boat the Master's Mate Safety Initiative Network was built for — free, simple, and always on watch.
Free forever · No credit card · for recreational captains
Keep HALCYON looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
41.6767° N, 70.6174° W
Cruising off the U.S. East Coast? 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 · for recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put HALCYON 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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 HALCYON and switch it all on
Free to join · nothing to install to start · cancel anytime
About HALCYON
What kind of vessel is HALCYON?
HALCYON is a Recreational flagged to United States of America.
Where was HALCYON last seen?
HALCYON was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is HALCYON's MMSI?
HALCYON's MMSI is 368272790. Call sign WDN3558.
How big is HALCYON?
HALCYON is about 11.9 m long, 4 m on the beam, drawing 1.2 m.
Is HALCYON on the Master's Mate Safety Initiative Network?
Not yet. If HALCYON is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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