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

Silver Joan

MMSI 477854600

Not yet on Master's Mate

Flag

HKG

Length

183 m

IMO

9718894

AIS reports

Silver Joan is a vessel flying the flag of Hong Kong, 183 metres from stem to stern. Her papers read MMSI 477854600, IMO 9718894. Silver Joan 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 Silver Joan 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 Silver Joan 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 Silver Joan 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 Silver Joan and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Silver Joan

What kind of vessel is Silver Joan?

Silver Joan is a vessel flagged to Hong Kong S.A.R..

What is Silver Joan's MMSI?

Silver Joan's MMSI is 477854600. IMO 9718894.

How big is Silver Joan?

Silver Joan is about 183 m long.

Is Silver Joan on the Master's Mate Safety Initiative Network?

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