MMSI 366939780 · Call sign WDL7631
Not yet on Master's MateJOHN JOSEPH flies the American flag — a 34-metre harbour tug. She has a 10-metre beam and a draft of 16 m. She broadcasts as MMSI 366939780, call sign WDL7631, IMO 7303865. It's free to add JOHN JOSEPH to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
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
Joining the Safety Initiative Network doesn't just put JOHN JOSEPH on the map. It hands you the full bridge:
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