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.

Passenger (Inspected)

Diver Down II

MMSI 367078920 · Call sign WDC7917

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

13.5 m

Beam

4.3 m

Draft

2.3 m

Call sign

WDC7917

Official No.

630430

AIS reports

Diver Down II is a passenger craft wearing American colours, spanning 13.5 metres. She has a 4.3 m beam and a draft measuring 2.3 metres. Her papers read MMSI 367078920, call sign WDC7917. Join Diver Down II to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard Diver Down II safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

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

Wherever Diver Down II 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 passenger & charter operators

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

Joining the Safety Initiative Network doesn't just put Diver Down II on the map. It hands you the full bridge:

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

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 Diver Down II and switch it all on

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About Diver Down II

What kind of vessel is Diver Down II?

Diver Down II is a Passenger (Inspected) flagged to United States of America.

What is Diver Down II's MMSI?

Diver Down II's MMSI is 367078920. Call sign WDC7917.

How big is Diver Down II?

Diver Down II is about 13.5 m long, 4.3 m on the beam, drawing 2.3 m.

Is Diver Down II on the Master's Mate Safety Initiative Network?

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