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)

Big Valley 1123

MMSI 368363410 · Call sign WDP5434

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

14.3 m

Beam

3.7 m

Draft

1 m

Call sign

WDP5434

Official No.

1344883

AIS reports

On the American registry, Big Valley 1123 is a 14.3-metre ferry vessel. Her hull carries a beam measuring 3.7 metres and a draft of 1 m. Her papers read MMSI 368363410, call sign WDP5434. Join Big Valley 1123 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 Big Valley 1123 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 Big Valley 1123 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 Big Valley 1123 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 Big Valley 1123 and switch it all on

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About Big Valley 1123

What kind of vessel is Big Valley 1123?

Big Valley 1123 is a Passenger (Inspected) flagged to United States of America.

What is Big Valley 1123's MMSI?

Big Valley 1123's MMSI is 368363410. Call sign WDP5434.

How big is Big Valley 1123?

Big Valley 1123 is about 14.3 m long, 3.7 m on the beam, drawing 1 m.

Is Big Valley 1123 on the Master's Mate Safety Initiative Network?

Not yet. If Big Valley 1123 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).