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
U.S. Official No. 272986
Not yet on Master's MateType
Towing Vessel
Flag
USALength
10.5 m
Beam
4 m
Draft
1.2 m
First reported
Jun 2026
AIS reports
1
JACK is an American 10.5-metre harbour workboat. Her hull carries a 4-metre beam and a draft of 1.2 m. Her papers read U.S. official number 272986. Give JACK the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for working boats
Built for boats that work — like JACK.
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 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put JACK 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 and switch it all on
Free to join · nothing to install to start · cancel anytime
About JACK
What kind of vessel is JACK?
JACK is a Towing Vessel flagged to United States of America.
What is JACK's U.S. Official No.?
JACK's U.S. Official No. is 272986.
How big is JACK?
JACK is about 10.5 m long, 4 m on the beam, drawing 1.2 m.
Is JACK on the Master's Mate Safety Initiative Network?
Not yet. If JACK is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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