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.

Unclassified

FORT JOHNSON

MMSI 367069380 · Call sign WDI4954

Not yet on Master's Mate

Type

Unclassified

Flag

USA

Length

11.7 m

Beam

3.4 m

Draft

1.8 m

Call sign

WDI4954

Official No.

1176817

AIS reports

An American craft, FORT JOHNSON measures 11.7 metres. FORT JOHNSON has a 3.4-metre beam and a 1.8 m draft. Her registration reads MMSI 367069380, call sign WDI4954. FORT JOHNSON is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

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Wherever FORT JOHNSON roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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

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.

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.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

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.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

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About FORT JOHNSON

What kind of vessel is FORT JOHNSON?

FORT JOHNSON is a Unclassified flagged to United States of America.

What is FORT JOHNSON's MMSI?

FORT JOHNSON's MMSI is 367069380. Call sign WDI4954.

How big is FORT JOHNSON?

FORT JOHNSON is about 11.7 m long, 3.4 m on the beam, drawing 1.8 m.

Is FORT JOHNSON on the Master's Mate Safety Initiative Network?

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