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

Ch Doris

MMSI 441763000

Not yet on Master's Mate

Flag

KOR

Length

177.4 m

IMO

9489247

AIS reports

Ch Doris is a vessel under the South Korean flag, 177.4 metres on deck. She's on record as MMSI 441763000, IMO 9489247. Sign Ch Doris up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

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Is Ch Doris 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 Ch Doris 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 Ch Doris 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 Ch Doris and switch it all on

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About Ch Doris

What kind of vessel is Ch Doris?

Ch Doris is a vessel flagged to South Korea.

What is Ch Doris's MMSI?

Ch Doris's MMSI is 441763000. IMO 9489247.

How big is Ch Doris?

Ch Doris is about 177.4 m long.

Is Ch Doris on the Master's Mate Safety Initiative Network?

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