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.
Vessel
SD Northern River
MMSI 235090402
Not yet on Master's MateFlag
GBRLength
92.8 m
IMO
9179323
AIS reports
2
SD Northern River is a vessel under the British flag, spanning 92.8 metres. On the registers she's MMSI 235090402, IMO 9179323. Put SD Northern River on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card
Is SD Northern River 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.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 22:07 UTC
Position
50.4877° N, 2.0048° W
Status
Under way (engine)
Speed
11.6 kn
Course
227°
Destination
US GPT
ETA
06-28 08:00 UTC
Crossing the English Channel? 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SD Northern River 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.
Claim SD Northern River and switch it all on
Free to join · nothing to install to start · cancel anytime
About SD Northern River
What kind of vessel is SD Northern River?
SD Northern River is a vessel flagged to United Kingdom.
Where was SD Northern River last seen?
SD Northern River was last reported in the English Channel on public AIS.
What is SD Northern River's MMSI?
SD Northern River's MMSI is 235090402. IMO 9179323.
How big is SD Northern River?
SD Northern River is about 92.8 m long.
Is SD Northern River on the Master's Mate Safety Initiative Network?
Not yet. If SD Northern River is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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