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

Rosco Plum

MMSI 477560500

Not yet on Master's Mate

Flag

HKG

Length

225 m

IMO

9294496

AIS reports

Registered in Hong Kong, Rosco Plum is a 225-metre boat. Look for MMSI 477560500, IMO 9294496. Rosco Plum is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

Free forever · No credit card

Is Rosco Plum 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

Wherever Rosco Plum 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 Rosco Plum 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 Rosco Plum and switch it all on

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About Rosco Plum

What kind of vessel is Rosco Plum?

Rosco Plum is a vessel flagged to Hong Kong S.A.R..

What is Rosco Plum's MMSI?

Rosco Plum's MMSI is 477560500. IMO 9294496.

How big is Rosco Plum?

Rosco Plum is about 225 m long.

Is Rosco Plum on the Master's Mate Safety Initiative Network?

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