MMSI 367319840 · Call sign WS8031
Not yet on Master's MateOn the American registry, MICHAEL COSGROVE is an 18.5-metre excursion vessel. MICHAEL COSGROVE has a beam of 10.9 m and a 2.9-metre draft. Her papers read MMSI 367319840, call sign WS8031. The Master's Mate Safety Initiative Network welcomes MICHAEL COSGROVE — free to join, cruiser-run, and always on watch.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put MICHAEL COSGROVE on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.