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.

Commercial Fishing Vessel

Half Moon

MMSI 367549060 · Call sign WDG5673

Not yet on Master's Mate

Type

Commercial Fishing Vessel

Flag

USA

Length

55.4 m

Beam

12.2 m

Draft

5.6 m

Call sign

WDG5673

IMO

7334280

Official No.

MD 8761 BT

AIS reports

Registered in the United States, Half Moon is a 55.4-metre fishing trawler. She has a 12.2-metre beam and a draft measuring 5.6 metres. Look for MMSI 367549060, call sign WDG5673, IMO 7334280. Out where help is far away, Half Moon has the free Master's Mate Safety Initiative Network — and a fleet that answers.

Free forever · No credit card · for working captains

Know where the fleet is. Get Half Moon home safe.

Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.

Keep the fleet in sight — free →

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

Wherever Half Moon 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 working captains

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

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

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.

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.

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 Half Moon and switch it all on

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

Claim free → unlock everything

About Half Moon

What kind of vessel is Half Moon?

Half Moon is a Commercial Fishing Vessel flagged to United States of America.

What is Half Moon's MMSI?

Half Moon's MMSI is 367549060. Call sign WDG5673. IMO 7334280.

How big is Half Moon?

Half Moon is about 55.4 m long, 12.2 m on the beam, drawing 5.6 m.

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

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