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
TENDER IV
Germany · last seen 54°N 10°E · Jun 2026 · MMSI 218058740
Not yet on Master's MateFlag
DEUFirst reported
Jun 2026
Last reported
Jun 2026
AIS reports
17
TENDER IV is a boat, flagged in Germany. She's listed under MMSI 218058740. Join TENDER IV to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is TENDER IV 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 4, 2026
Position
54.4034° N, 10.2191° E
Crossing the Baltic 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 TENDER IV 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 TENDER IV and switch it all on
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About TENDER IV
What kind of vessel is TENDER IV?
TENDER IV is a vessel flagged to Germany.
Where was TENDER IV last seen?
TENDER IV was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is TENDER IV's MMSI?
TENDER IV's MMSI is 218058740.
Is TENDER IV on the Master's Mate Safety Initiative Network?
Not yet. If TENDER IV is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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