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.

Passenger (Uninspected)

Moon Dragon

MMSI 303566000 · Call sign WDN4394

Not yet on Master's Mate

Type

Passenger (Uninspected)

Flag

USA

Length

28.5 m

Beam

8.8 m

Draft

2.7 m

Call sign

WDN4394

IMO

7609582

Official No.

558637

AIS reports

Moon Dragon is an American passenger vessel, 28.5 metres in length. Moon Dragon has 8.8 metres in the beam and a 2.7 m draft. On AIS she appears as MMSI 303566000, call sign WDN4394, IMO 7609582. Moon Dragon is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard Moon Dragon safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Moon Dragon 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 · for passenger & charter operators

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Moon Dragon on the map. It hands you the full bridge:

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

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.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim Moon Dragon and switch it all on

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

Claim free → unlock everything

About Moon Dragon

What kind of vessel is Moon Dragon?

Moon Dragon is a Passenger (Uninspected) flagged to United States of America.

What is Moon Dragon's MMSI?

Moon Dragon's MMSI is 303566000. Call sign WDN4394. IMO 7609582.

How big is Moon Dragon?

Moon Dragon is about 28.5 m long, 8.8 m on the beam, drawing 2.7 m.

Is Moon Dragon on the Master's Mate Safety Initiative Network?

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