MMSI 232047056 · Call sign GPTU
Not yet on Master's MateRFA PROTEUS is a British craft — 98 metres overall. She's built with a 20 m beam. Look for MMSI 232047056, call sign GPTU, IMO 9792539. RFA PROTEUS can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
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 RFA PROTEUS on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.