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
Maartje Theodora
MMSI 218066000
Not yet on Master's MateFlag
DEULength
140 m
IMO
9182801
AIS reports
2
Maartje Theodora is a German boat, 140 metres LOA. On AIS she appears as MMSI 218066000, IMO 9182801. Maartje Theodora belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Is Maartje Theodora 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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Wherever Maartje Theodora roams, 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 Maartje Theodora 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 Maartje Theodora and switch it all on
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About Maartje Theodora
What kind of vessel is Maartje Theodora?
Maartje Theodora is a vessel flagged to Germany.
What is Maartje Theodora's MMSI?
Maartje Theodora's MMSI is 218066000. IMO 9182801.
How big is Maartje Theodora?
Maartje Theodora is about 140 m long.
Is Maartje Theodora on the Master's Mate Safety Initiative Network?
Not yet. If Maartje Theodora is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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