MMSI 367173780 · Call sign WBG9974
Not yet on Master's MateJOSS, an American pleasure boat, measures 15.2 metres on deck. Below, she has a 3.8 m beam and a draft measuring 2.1 metres. Her papers read MMSI 367173780, call sign WBG9974. JOSS belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put JOSS on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.