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
CAPT. JACK
U.S. Official No. 516976
Not yet on Master's MateType
Unclassified
Flag
USALength
21.1 m
Beam
6.6 m
Draft
3.2 m
First reported
Jun 2026
AIS reports
1
CAPT. JACK flies the American flag — a 21.1-metre craft. She has a 6.6-metre beam and a draft of 3.2 m. Officially she's U.S. official number 516976. Give CAPT. JACK the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
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Is CAPT. JACK 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 CAPT. 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put CAPT. JACK 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 CAPT. JACK and switch it all on
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About CAPT. JACK
What kind of vessel is CAPT. JACK?
CAPT. JACK is a Unclassified flagged to United States of America.
What is CAPT. JACK's U.S. Official No.?
CAPT. JACK's U.S. Official No. is 516976.
How big is CAPT. JACK?
CAPT. JACK is about 21.1 m long, 6.6 m on the beam, drawing 3.2 m.
Is CAPT. JACK on the Master's Mate Safety Initiative Network?
Not yet. If CAPT. JACK is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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