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.

Vessel

Heavy Metal

United States of America · last seen 37°N 76°W · Jun 2026 · MMSI 367536950 · Call sign WDG4477

Not yet on Master's Mate

Flag

USA

Call sign

WDG4477

Official No.

1044960

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

SV HEAVY METAL is a sailing vessel flagged in the United States, identified by MMSI 367536950 and call sign WDG4477. She is a recognized presence on the water. Cruisers can enhance their safety by connecting to the Master's Mate Safety Initiative Network.

Free forever · No credit card

Is Heavy Metal your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

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

Last known position · Jun 4, 2026

Track Heavy Metal live — sign up free →

Position

36.9647° N, 76.2957° W

Crossing Chesapeake Bay? 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

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

Joining the Safety Initiative Network doesn't just put Heavy Metal 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.

Claim Heavy Metal and switch it all on

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

Claim free → unlock everything

About Heavy Metal

What kind of vessel is Heavy Metal?

Heavy Metal is a vessel flagged to United States of America.

Where was Heavy Metal last seen?

Heavy Metal was last reported in Chesapeake Bay in Jun 2026 on public AIS.

What is Heavy Metal's MMSI?

Heavy Metal's MMSI is 367536950. Call sign WDG4477.

Is Heavy Metal on the Master's Mate Safety Initiative Network?

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