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

Otto Treplin

MMSI 211604570

Not yet on Master's Mate

Flag

DEU

Length

48.9 m

IMO

6609420

AIS reports

Otto Treplin is a German craft — 48.9 metres overall. Her papers read MMSI 211604570, IMO 6609420. Otto Treplin belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

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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 Otto Treplin 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 Otto Treplin 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 Otto Treplin and switch it all on

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About Otto Treplin

What kind of vessel is Otto Treplin?

Otto Treplin is a vessel flagged to Germany.

What is Otto Treplin's MMSI?

Otto Treplin's MMSI is 211604570. IMO 6609420.

How big is Otto Treplin?

Otto Treplin is about 48.9 m long.

Is Otto Treplin on the Master's Mate Safety Initiative Network?

Not yet. If Otto Treplin is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).