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

M/V JOHN G.

MMSI 367009680 · Call sign WDC3535

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

20.2 m

Beam

7.3 m

Draft

3.1 m

Call sign

WDC3535

IMO

8987357

Official No.

578760

AIS reports

M/V JOHN G. is a service vessel hailing from the United States, measuring 20.2 metres. M/V JOHN G. has a beam of 7.3 m and a 3.1 m draft. Officially she's MMSI 367009680, call sign WDC3535, IMO 8987357. The Master's Mate Safety Initiative Network welcomes M/V JOHN G. — free to join, cruiser-run, and always on watch.

Free forever · No credit card · for working boats

Built for boats that work — like M/V JOHN G..

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 M/V JOHN G. 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 M/V JOHN G. 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 M/V JOHN G. and switch it all on

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Claim free → unlock everything

About M/V JOHN G.

What kind of vessel is M/V JOHN G.?

M/V JOHN G. is a Towing Vessel flagged to United States of America.

What is M/V JOHN G.'s MMSI?

M/V JOHN G.'s MMSI is 367009680. Call sign WDC3535. IMO 8987357.

How big is M/V JOHN G.?

M/V JOHN G. is about 20.2 m long, 7.3 m on the beam, drawing 3.1 m.

Is M/V JOHN G. on the Master's Mate Safety Initiative Network?

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