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

Gloria 21

MMSI 477800400

Not yet on Master's Mate

Flag

HKG

Length

338 m

IMO

9034640

AIS reports

Gloria 21, a vessel flagged in Hong Kong, measures 338 metres on deck. She broadcasts as MMSI 477800400, IMO 9034640. Bring Gloria 21 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

Free forever · No credit card

Is Gloria 21 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 Gloria 21 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 Gloria 21 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 Gloria 21 and switch it all on

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About Gloria 21

What kind of vessel is Gloria 21?

Gloria 21 is a vessel flagged to Hong Kong S.A.R..

What is Gloria 21's MMSI?

Gloria 21's MMSI is 477800400. IMO 9034640.

How big is Gloria 21?

Gloria 21 is about 338 m long.

Is Gloria 21 on the Master's Mate Safety Initiative Network?

Not yet. If Gloria 21 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).