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.
Dredging
MEDUSA
MMSI 244130209 · Call sign PB3904
Not yet on Master's MateType
Dredging
Flag
NLDLength
20 m
Beam
5 m
Draft
1.2 m
Call sign
PB3904
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
MEDUSA, a working craft hailing from the Netherlands, measures 20 metres on deck. Below, she has a beam of 5 m and a draft of 1.2 m. Her registration reads MMSI 244130209, call sign PB3904. Put MEDUSA on the free Master's Mate Safety Initiative Network and keep the working fleet looking out for each other.
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Live AIS position · Jun 9, 2026 12:13 UTC
Position
52.3722° N, 4.9148° E
Status
Under way (engine)
Speed
0.0 kn
Course
360°
Destination
AMSTERDAM
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Joining the Safety Initiative Network doesn't just put MEDUSA 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
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Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim MEDUSA and switch it all on
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About MEDUSA
What kind of vessel is MEDUSA?
MEDUSA is a Dredging flagged to Netherlands.
Where was MEDUSA last seen?
MEDUSA was last reported in the North Sea in Jun 2026 on public AIS.
What is MEDUSA's MMSI?
MEDUSA's MMSI is 244130209. Call sign PB3904.
How big is MEDUSA?
MEDUSA is about 20 m long, 5 m on the beam, drawing 1.2 m.
Is MEDUSA on the Master's Mate Safety Initiative Network?
Not yet. If MEDUSA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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