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

Sheng Li 221

MMSI 412320840

Not yet on Master's Mate

Flag

CHN

Length

55 m

IMO

8830918

AIS reports

Sheng Li 221, a Chinese craft, measures 55 metres on deck. On the registers she's MMSI 412320840, IMO 8830918. Sheng Li 221 can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.

Free forever · No credit card

Is Sheng Li 221 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 Sheng Li 221 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 Sheng Li 221 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 Sheng Li 221 and switch it all on

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About Sheng Li 221

What kind of vessel is Sheng Li 221?

Sheng Li 221 is a vessel flagged to China.

What is Sheng Li 221's MMSI?

Sheng Li 221's MMSI is 412320840. IMO 8830918.

How big is Sheng Li 221?

Sheng Li 221 is about 55 m long.

Is Sheng Li 221 on the Master's Mate Safety Initiative Network?

Not yet. If Sheng Li 221 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).