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.

Offshore Supply Vessel

LADY B III

MMSI 366392000 · Call sign WDK8744

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

59.8 m

Beam

16.2 m

Draft

5.4 m

Call sign

WDK8744

IMO

7517739

Official No.

599933

AIS reports

Out of the United States, LADY B III is a 59.8-metre utility vessel. She carries a 16.2 m beam and a 5.4-metre draft. She broadcasts as MMSI 366392000, call sign WDK8744, IMO 7517739. Give LADY B III the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

Free forever · No credit card · for working boats

Built for boats that work — like LADY B III.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

Rig her out — free →

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

Wherever LADY B III 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 boats

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

Joining the Safety Initiative Network doesn't just put LADY B III on the map. It hands you the full bridge:

Systems Monitoring

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

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.

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 LADY B III and switch it all on

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

Claim free → unlock everything

About LADY B III

What kind of vessel is LADY B III?

LADY B III is a Offshore Supply Vessel flagged to United States of America.

What is LADY B III's MMSI?

LADY B III's MMSI is 366392000. Call sign WDK8744. IMO 7517739.

How big is LADY B III?

LADY B III is about 59.8 m long, 16.2 m on the beam, drawing 5.4 m.

Is LADY B III on the Master's Mate Safety Initiative Network?

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