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.
Other
SENTINEL 303
MMSI 316050436 · Call sign CFA3843
Not yet on Master's MateType
Other
Flag
CANLength
76 m
Beam
20 m
Call sign
CFA3843
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
SENTINEL 303, a Canadian vessel, measures 76 metres on deck. SENTINEL 303 has 20 metres in the beam. Her registration reads MMSI 316050436, call sign CFA3843. SENTINEL 303 can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
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Is SENTINEL 303 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.
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Live AIS position · Jun 9, 2026 10:33 UTC
Position
49.1644° N, 123.9273° W
Status
Moored
Speed
0.0 kn
Course
64°
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Joining the Safety Initiative Network doesn't just put SENTINEL 303 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.
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About SENTINEL 303
What kind of vessel is SENTINEL 303?
SENTINEL 303 is a Other flagged to Canada.
Where was SENTINEL 303 last seen?
SENTINEL 303 was last reported in the Salish Sea in Jun 2026 on public AIS.
What is SENTINEL 303's MMSI?
SENTINEL 303's MMSI is 316050436. Call sign CFA3843.
How big is SENTINEL 303?
SENTINEL 303 is about 76 m long, 20 m on the beam.
Is SENTINEL 303 on the Master's Mate Safety Initiative Network?
Not yet. If SENTINEL 303 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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