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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.
Towing Vessel

Jack Cenac

MMSI 368285040 · Call sign WDN4878

Not yet on Master's Mate
Type
Towing Vessel
Flag
USAUSA
Length
18.3 m
Beam
8.5 m
Draft
2.7 m
Call sign
WDN4878
Official No.
1312482
AIS reports
1

Jack Cenac, an American utility vessel, measures 18.3 metres on deck. She carries a beam measuring 8.5 metres and a 2.7-metre draft. On AIS she appears as MMSI 368285040, call sign WDN4878. There's a place for Jack Cenac on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.

Free forever · No credit card · for working boats

Built for boats that work — like Jack Cenac.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

Rig her out — free →

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

Wherever Jack Cenac 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 Jack Cenac on the map. It hands you the full bridge:

Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 Jack Cenac and switch it all on
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About Jack Cenac

What kind of vessel is Jack Cenac?
Jack Cenac is a Towing Vessel flagged to United States of America.
What is Jack Cenac's MMSI?
Jack Cenac's MMSI is 368285040. Call sign WDN4878.
How big is Jack Cenac?
Jack Cenac is about 18.3 m long, 8.5 m on the beam, drawing 2.7 m.
Is Jack Cenac on the Master's Mate Safety Initiative Network?
Not yet. If Jack Cenac is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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