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.

Towing Vessel

Liberty

MMSI 367011890 · Call sign WDC3647

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

22.9 m

Beam

9.1 m

Draft

3 m

Call sign

WDC3647

IMO

8981432

Official No.

1141276

AIS reports

On the American registry, Liberty is a 22.9-metre work boat. Her hull carries a beam of 9.1 m and a draft measuring 3 metres. She's listed under MMSI 367011890, call sign WDC3647, IMO 8981432. Liberty can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

Free forever · No credit card · for working boats

Built for boats that work — like Liberty.

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 Liberty 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 Liberty 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 Liberty and switch it all on

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

Claim free → unlock everything

About Liberty

What kind of vessel is Liberty?

Liberty is a Towing Vessel flagged to United States of America.

What is Liberty's MMSI?

Liberty's MMSI is 367011890. Call sign WDC3647. IMO 8981432.

How big is Liberty?

Liberty is about 22.9 m long, 9.1 m on the beam, drawing 3 m.

Is Liberty on the Master's Mate Safety Initiative Network?

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