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 PRINCE
MMSI 366888750 · Call sign WYT8569
Not yet on Master's MateType
Towing Vessel
Flag
USALength
36.2 m
Beam
10.4 m
Draft
4.5 m
Call sign
WYT8569
IMO
7367160
Official No.
555271
AIS reports
1
SEA PRINCE is a working craft flying the American flag, 36.2 metres LOA. Below, she has a beam measuring 10.4 metres and a draft of 4.5 m. Her papers read MMSI 366888750, call sign WYT8569, IMO 7367160. Bring SEA PRINCE aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like SEA PRINCE.
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 PRINCE 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 PRINCE 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 PRINCE and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA PRINCE
What kind of vessel is SEA PRINCE?
SEA PRINCE is a Towing Vessel flagged to United States of America.
What is SEA PRINCE's MMSI?
SEA PRINCE's MMSI is 366888750. Call sign WYT8569. IMO 7367160.
How big is SEA PRINCE?
SEA PRINCE is about 36.2 m long, 10.4 m on the beam, drawing 4.5 m.
Is SEA PRINCE on the Master's Mate Safety Initiative Network?
Not yet. If SEA PRINCE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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