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.
Tug
KROONWIJK
MMSI 245636000 · Call sign PC4540
Not yet on Master's MateType
Tug
Flag
NLDLength
17 m
Beam
5 m
Call sign
PC4540
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in the Netherlands, KROONWIJK is a 17-metre harbour tug. Below, she has a 5 m beam. On AIS she shows as MMSI 245636000, call sign PC4540. KROONWIJK earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.
Free forever · No credit card · for working boats
Built for boats that work — like KROONWIJK.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 16:06 UTC
Position
53.2375° N, 6.2036° E
Status
Under way (engine)
Speed
2.0 kn
Course
97°
Working 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 KROONWIJK 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
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 KROONWIJK and switch it all on
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About KROONWIJK
What kind of vessel is KROONWIJK?
KROONWIJK is a Tug flagged to Netherlands.
Where was KROONWIJK last seen?
KROONWIJK was last reported in the North Sea in Jun 2026 on public AIS.
What is KROONWIJK's MMSI?
KROONWIJK's MMSI is 245636000. Call sign PC4540.
How big is KROONWIJK?
KROONWIJK is about 17 m long, 5 m on the beam.
Is KROONWIJK on the Master's Mate Safety Initiative Network?
Not yet. If KROONWIJK is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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