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.
Oil Recovery
Ocean Sentinel
MMSI 367534910 · Call sign WDG4282
Not yet on Master's MateType
Oil Recovery
Flag
USALength
18 m
Beam
6.7 m
Draft
2.6 m
Call sign
WDG4282
Official No.
1240389
AIS reports
1
Out of the United States, Ocean Sentinel is an 18-metre working ship. She carries a 6.7-metre beam and a 2.6 m draft. She's listed under MMSI 367534910, call sign WDG4282. Ocean Sentinel is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for commercial operators
Eyes on Ocean Sentinel, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Ocean Sentinel 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Ocean Sentinel on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Ocean Sentinel and switch it all on
Free to join · nothing to install to start · cancel anytime
About Ocean Sentinel
What kind of vessel is Ocean Sentinel?
Ocean Sentinel is a Oil Recovery flagged to United States of America.
What is Ocean Sentinel's MMSI?
Ocean Sentinel's MMSI is 367534910. Call sign WDG4282.
How big is Ocean Sentinel?
Ocean Sentinel is about 18 m long, 6.7 m on the beam, drawing 2.6 m.
Is Ocean Sentinel on the Master's Mate Safety Initiative Network?
Not yet. If Ocean Sentinel is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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