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.

Research Vessel

COASTAL SURVEYOR

MMSI 366574360 · Call sign WCF2991

Not yet on Master's Mate

Type

Research Vessel

Flag

USA

Length

12.2 m

Beam

3.6 m

Draft

1.6 m

Call sign

WCF2991

Official No.

999206

AIS reports

COASTAL SURVEYOR, an American boat, measures 12.2 metres on deck. She's built with a beam measuring 3.6 metres and a 1.6-metre draft. She broadcasts as MMSI 366574360, call sign WCF2991. COASTAL SURVEYOR is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

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Is COASTAL SURVEYOR 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.

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

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

Joining the Safety Initiative Network doesn't just put COASTAL SURVEYOR 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 COASTAL SURVEYOR and switch it all on

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About COASTAL SURVEYOR

What kind of vessel is COASTAL SURVEYOR?

COASTAL SURVEYOR is a Research Vessel flagged to United States of America.

What is COASTAL SURVEYOR's MMSI?

COASTAL SURVEYOR's MMSI is 366574360. Call sign WCF2991.

How big is COASTAL SURVEYOR?

COASTAL SURVEYOR is about 12.2 m long, 3.6 m on the beam, drawing 1.6 m.

Is COASTAL SURVEYOR on the Master's Mate Safety Initiative Network?

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