MMSI 367357080 · Call sign WDE4727
Not yet on Master's MateF. W. KNOWLES is a craft registered in the United States. She's on record as MMSI 367357080, call sign WDE4727. Add F. W. KNOWLES to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put F. W. KNOWLES on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.