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.

Towing Vessel

W. DOUGLAS MASTERSON

MMSI 366921870 · Call sign WY2451

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

25.1 m

Beam

8.2 m

Draft

3.2 m

Call sign

WY2451

IMO

8624670

Official No.

511829

AIS reports

W. DOUGLAS MASTERSON, an American utility vessel, measures 25.1 metres on deck. She's built with 8.2 metres in the beam and a 3.2-metre draft. She's on record as MMSI 366921870, call sign WY2451, IMO 8624670. Sign W. DOUGLAS MASTERSON up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

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Built for boats that work — like W. DOUGLAS MASTERSON.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

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

Wherever W. DOUGLAS MASTERSON 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 W. DOUGLAS MASTERSON 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 W. DOUGLAS MASTERSON and switch it all on

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About W. DOUGLAS MASTERSON

What kind of vessel is W. DOUGLAS MASTERSON?

W. DOUGLAS MASTERSON is a Towing Vessel flagged to United States of America.

What is W. DOUGLAS MASTERSON's MMSI?

W. DOUGLAS MASTERSON's MMSI is 366921870. Call sign WY2451. IMO 8624670.

How big is W. DOUGLAS MASTERSON?

W. DOUGLAS MASTERSON is about 25.1 m long, 8.2 m on the beam, drawing 3.2 m.

Is W. DOUGLAS MASTERSON on the Master's Mate Safety Initiative Network?

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