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
Jim Marko
MMSI 367002940 · Call sign WDC3128
Not yet on Master's MateType
Towing Vessel
Flag
USALength
20.2 m
Beam
7.3 m
Draft
3.1 m
Call sign
WDC3128
Official No.
571708
AIS reports
1
Jim Marko, an utility vessel under the American flag, measures 20.2 metres on deck. Jim Marko has a beam measuring 7.3 metres and a 3.1-metre draft. Find her under MMSI 367002940, call sign WDC3128. Bring Jim Marko aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like Jim Marko.
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 Jim Marko 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 Jim Marko 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 Jim Marko and switch it all on
Free to join · nothing to install to start · cancel anytime
About Jim Marko
What kind of vessel is Jim Marko?
Jim Marko is a Towing Vessel flagged to United States of America.
What is Jim Marko's MMSI?
Jim Marko's MMSI is 367002940. Call sign WDC3128.
How big is Jim Marko?
Jim Marko is about 20.2 m long, 7.3 m on the beam, drawing 3.1 m.
Is Jim Marko on the Master's Mate Safety Initiative Network?
Not yet. If Jim Marko is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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