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.
Offshore Supply Vessel
MB3
MMSI 338089000 · Call sign WDK2845
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
30.9 m
Beam
7.9 m
Draft
3.6 m
Call sign
WDK2845
Official No.
591434
AIS reports
3
Out of the United States, MB3 is a 30.9-metre utility vessel. She carries a 7.9-metre beam and a 3.6-metre draft. She's on record as MMSI 338089000, call sign WDK2845. It's free to add MB3 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working boats
Built for boats that work — like MB3.
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 MB3 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 MB3 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 MB3 and switch it all on
Free to join · nothing to install to start · cancel anytime
About MB3
What kind of vessel is MB3?
MB3 is a Offshore Supply Vessel flagged to United States of America.
What is MB3's MMSI?
MB3's MMSI is 338089000. Call sign WDK2845.
How big is MB3?
MB3 is about 30.9 m long, 7.9 m on the beam, drawing 3.6 m.
Is MB3 on the Master's Mate Safety Initiative Network?
Not yet. If MB3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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