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.

Offshore Supply Vessel

SUPERIOR STORM

MMSI 366857470 · Call sign WDA8731

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

40.2 m

Beam

29.3 m

Draft

4 m

Call sign

WDA8731

IMO

8765400

Official No.

1120898

AIS reports

SUPERIOR STORM is an American working vessel — 40.2 metres overall. Her hull carries a 29.3 m beam and a draft measuring 4 metres. She broadcasts as MMSI 366857470, call sign WDA8731, IMO 8765400. Give SUPERIOR STORM the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

Free forever · No credit card · for working boats

Built for boats that work — like SUPERIOR STORM.

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 SUPERIOR STORM 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 SUPERIOR STORM 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 SUPERIOR STORM and switch it all on

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

Claim free → unlock everything

About SUPERIOR STORM

What kind of vessel is SUPERIOR STORM?

SUPERIOR STORM is a Offshore Supply Vessel flagged to United States of America.

What is SUPERIOR STORM's MMSI?

SUPERIOR STORM's MMSI is 366857470. Call sign WDA8731. IMO 8765400.

How big is SUPERIOR STORM?

SUPERIOR STORM is about 40.2 m long, 29.3 m on the beam, drawing 4 m.

Is SUPERIOR STORM on the Master's Mate Safety Initiative Network?

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