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

B-720

U.S. Official No. 1334876

Not yet on Master's Mate

Type

Unclassified

Flag

USA

Length

16.8 m

Beam

3.7 m

Draft

1.5 m

Hull ID

INWDSSB4K016

First reported

Jun 2026

AIS reports

Out of the United States, B-720 is a 16.8-metre boat. She's built with a 3.7 m beam and a 1.5-metre draft. She's listed under U.S. official number 1334876. B-720 can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

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Is B-720 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.

Claim this boat — free →

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

Wherever B-720 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

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

Joining the Safety Initiative Network doesn't just put B-720 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 B-720 and switch it all on

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Claim free → unlock everything

About B-720

What kind of vessel is B-720?

B-720 is a Unclassified flagged to United States of America.

What is B-720's U.S. Official No.?

B-720's U.S. Official No. is 1334876.

How big is B-720?

B-720 is about 16.8 m long, 3.7 m on the beam, drawing 1.5 m.

Is B-720 on the Master's Mate Safety Initiative Network?

Not yet. If B-720 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).