U.S. Official No. 569451
Not yet on Master's MateOut of the United States, CAPT RALPH is a 13-metre commercial trawler. CAPT RALPH has a beam of 4.8 m and a 2.5 m draft. Look for U.S. official number 569451. CAPT RALPH is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put CAPT RALPH on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.