MMSI 367791530 · Call sign WDJ5812
Not yet on Master's MateJON GONSOULIN, an American utility boat, measures 27.8 metres on deck. She's built with a 10.4-metre beam and a 3.2-metre draft. Officially she's MMSI 367791530, call sign WDJ5812. JON GONSOULIN is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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 JON GONSOULIN on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.