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.
Towing Vessel
SEA HORSE
MMSI 366887940 · Call sign WBN4382
Not yet on Master's MateType
Towing Vessel
Flag
USALength
36.2 m
Beam
10.4 m
Draft
4.5 m
Call sign
WBN4382
IMO
7404085
Official No.
567812
AIS reports
1
SEA HORSE, an utility boat flying the American flag, measures 36.2 metres on deck. She carries a beam of 10.4 m and a 4.5-metre draft. Her papers read MMSI 366887940, call sign WBN4382, IMO 7404085. SEA HORSE can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for working boats
Built for boats that work — like SEA HORSE.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever SEA HORSE 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 · for working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SEA HORSE on the map. It hands you the full bridge:
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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SEA HORSE and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA HORSE
What kind of vessel is SEA HORSE?
SEA HORSE is a Towing Vessel flagged to United States of America.
What is SEA HORSE's MMSI?
SEA HORSE's MMSI is 366887940. Call sign WBN4382. IMO 7404085.
How big is SEA HORSE?
SEA HORSE is about 36.2 m long, 10.4 m on the beam, drawing 4.5 m.
Is SEA HORSE on the Master's Mate Safety Initiative Network?
Not yet. If SEA HORSE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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