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
CHELSEA
MMSI 235039962 · Call sign MPNW8
Not yet on Master's MateType
Other
Flag
GBRLength
10 m
Beam
4 m
Call sign
MPNW8
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
43
CHELSEA is a craft under the British flag, 10 metres in length. She's built with a 4 m beam. On the registers she's MMSI 235039962, call sign MPNW8. CHELSEA 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
Is CHELSEA 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
Last known position · Jun 3, 2026
Position
51.4686° N, 0.3217° W
Crossing the North Sea? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put CHELSEA 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 CHELSEA and switch it all on
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About CHELSEA
What kind of vessel is CHELSEA?
CHELSEA is a Other flagged to United Kingdom.
Where was CHELSEA last seen?
CHELSEA was last reported in the North Sea in Jun 2026 on public AIS.
What is CHELSEA's MMSI?
CHELSEA's MMSI is 235039962. Call sign MPNW8.
How big is CHELSEA?
CHELSEA is about 10 m long, 4 m on the beam.
Is CHELSEA on the Master's Mate Safety Initiative Network?
Not yet. If CHELSEA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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