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 Barge (Inspected)

NO. 4

U.S. Official No. 992709

Not yet on Master's Mate

Type

Passenger Barge (Inspected)

Flag

USA

Length

18.3 m

Beam

6.1 m

Draft

1.2 m

First reported

Jun 2026

AIS reports

NO. 4, an American passenger ferry, measures 18.3 metres on deck. Below, she has a beam measuring 6.1 metres and a draft of 1.2 m. Her papers read U.S. official number 992709. Give NO. 4 the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

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

Keep every soul aboard NO. 4 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 NO. 4 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 NO. 4 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 NO. 4 and switch it all on

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About NO. 4

What kind of vessel is NO. 4?

NO. 4 is a Passenger Barge (Inspected) flagged to United States of America.

What is NO. 4's U.S. Official No.?

NO. 4's U.S. Official No. is 992709.

How big is NO. 4?

NO. 4 is about 18.3 m long, 6.1 m on the beam, drawing 1.2 m.

Is NO. 4 on the Master's Mate Safety Initiative Network?

Not yet. If NO. 4 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).