MMSI 230174140 · Call sign OHA4017
Not yet on Master's MateJEHU is a Finnish 18-metre harbour workboat. Her hull carries a 4 m beam. She's on record as MMSI 230174140, call sign OHA4017. JEHU 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 JEHU on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.