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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)

JOAN R

U.S. Official No. 257301

Not yet on Master's Mate
Type
Passenger (Inspected)
Flag
USAUSA
Length
11.9 m
Beam
3.4 m
Draft
1.4 m
First reported
Jun 2026
AIS reports
1

JOAN R, a ferry vessel flying the American flag, measures 11.9 metres on deck. Her hull carries a beam of 3.4 m and a draft of 1.4 m. Officially she's U.S. official number 257301. The Master's Mate Safety Initiative Network welcomes JOAN R — free to join, cruiser-run, and always on watch.

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

Keep every soul aboard JOAN R 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 JOAN R 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 JOAN R 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 JOAN R and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About JOAN R

What kind of vessel is JOAN R?
JOAN R is a Passenger (Inspected) flagged to United States of America.
What is JOAN R's U.S. Official No.?
JOAN R's U.S. Official No. is 257301.
How big is JOAN R?
JOAN R is about 11.9 m long, 3.4 m on the beam, drawing 1.4 m.
Is JOAN R on the Master's Mate Safety Initiative Network?
Not yet. If JOAN R is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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