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.
Commercial Fishing Vessel
captain jack
MMSI 366909640 · Call sign WDB5439
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
23.8 m
Beam
7.3 m
Draft
4 m
Call sign
WDB5439
IMO
8939362
Official No.
1036298
AIS reports
1
captain jack flies the American flag — a 23.8-metre commercial trawler. captain jack has a beam measuring 7.3 metres and a 4 m draft. She broadcasts as MMSI 366909640, call sign WDB5439, IMO 8939362. Give captain 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 captains
Know where the fleet is. Get captain jack home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever captain 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 captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put captain jack on the map. It hands you the full bridge:
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.
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.
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 captain jack and switch it all on
Free to join · nothing to install to start · cancel anytime
About captain jack
What kind of vessel is captain jack?
captain jack is a Commercial Fishing Vessel flagged to United States of America.
What is captain jack's MMSI?
captain jack's MMSI is 366909640. Call sign WDB5439. IMO 8939362.
How big is captain jack?
captain jack is about 23.8 m long, 7.3 m on the beam, drawing 4 m.
Is captain jack on the Master's Mate Safety Initiative Network?
Not yet. If captain jack is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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