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

Great Kappa

MMSI 538008500

Not yet on Master's Mate

Flag

MHL

Length

183.2 m

IMO

9873656

AIS reports

A Marshall Islands boat, Great Kappa measures 183.2 metres. Find her under MMSI 538008500, IMO 9873656. Bring Great Kappa aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

Free forever · No credit card

Is Great Kappa 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 Great Kappa 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 Great Kappa 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 Great Kappa and switch it all on

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

Claim free → unlock everything

About Great Kappa

What kind of vessel is Great Kappa?

Great Kappa is a vessel flagged to Marshall Islands.

What is Great Kappa's MMSI?

Great Kappa's MMSI is 538008500. IMO 9873656.

How big is Great Kappa?

Great Kappa is about 183.2 m long.

Is Great Kappa on the Master's Mate Safety Initiative Network?

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