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.

Unclassified

M/V Master Valve

MMSI 367313470 · Call sign WDD9591

Not yet on Master's Mate

Type

Unclassified

Flag

USA

Length

14.6 m

Beam

5.5 m

Draft

1.1 m

Call sign

WDD9591

Official No.

1069399

AIS reports

M/V Master Valve, a vessel registered in the United States, measures 14.6 metres on deck. Below, she has a beam of 5.5 m and a draft of 1.1 m. On AIS she appears as MMSI 367313470, call sign WDD9591. Add M/V Master Valve to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

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Is M/V Master Valve 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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Wherever M/V Master Valve 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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Joining the Safety Initiative Network doesn't just put M/V Master Valve 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 M/V Master Valve and switch it all on

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About M/V Master Valve

What kind of vessel is M/V Master Valve?

M/V Master Valve is a Unclassified flagged to United States of America.

What is M/V Master Valve's MMSI?

M/V Master Valve's MMSI is 367313470. Call sign WDD9591.

How big is M/V Master Valve?

M/V Master Valve is about 14.6 m long, 5.5 m on the beam, drawing 1.1 m.

Is M/V Master Valve on the Master's Mate Safety Initiative Network?

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