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

Sabuk Nusantara 81

MMSI 525101087

Not yet on Master's Mate

Flag

IDN

Length

60 m

IMO

9816957

AIS reports

Registered in Indonesia, Sabuk Nusantara 81 is a 60-metre craft. On the registers she's MMSI 525101087, IMO 9816957. Claim Sabuk Nusantara 81 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

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Is Sabuk Nusantara 81 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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Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Sabuk Nusantara 81 roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

Free with your claim

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Sabuk Nusantara 81 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 Sabuk Nusantara 81 and switch it all on

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About Sabuk Nusantara 81

What kind of vessel is Sabuk Nusantara 81?

Sabuk Nusantara 81 is a vessel flagged to Indonesia.

What is Sabuk Nusantara 81's MMSI?

Sabuk Nusantara 81's MMSI is 525101087. IMO 9816957.

How big is Sabuk Nusantara 81?

Sabuk Nusantara 81 is about 60 m long.

Is Sabuk Nusantara 81 on the Master's Mate Safety Initiative Network?

Not yet. If Sabuk Nusantara 81 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).