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

Bart L

MMSI 366962220 · Call sign WDP8422

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

30.1 m

Beam

9.4 m

Draft

3.7 m

Call sign

WDP8422

IMO

7237509

Official No.

544311

AIS reports

Out of the United States, Bart L is a 30.1-metre harbour workboat. Her hull carries a beam of 9.4 m and a draft of 3.7 m. She's on record as MMSI 366962220, call sign WDP8422, IMO 7237509. Bart L is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

Free forever · No credit card · for working boats

Built for boats that work — like Bart L.

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 Bart L 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 Bart L 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 Bart L and switch it all on

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About Bart L

What kind of vessel is Bart L?

Bart L is a Towing Vessel flagged to United States of America.

What is Bart L's MMSI?

Bart L's MMSI is 366962220. Call sign WDP8422. IMO 7237509.

How big is Bart L?

Bart L is about 30.1 m long, 9.4 m on the beam, drawing 3.7 m.

Is Bart L on the Master's Mate Safety Initiative Network?

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