MMSI 366959040 · Call sign WDB8470
Not yet on Master's MateLady Catherine Ann, a passenger ship hailing from the United States, measures 17.1 metres on deck. Below, she has a 4.9 m beam and a draft measuring 3 metres. On AIS she appears as MMSI 366959040, call sign WDB8470. The Master's Mate Safety Initiative Network welcomes Lady Catherine Ann — 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 Lady Catherine Ann on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.