U.S. Official No. 518235
Not yet on Master's MateCG 30 flies the American flag — an 18.7-metre freight barge. She has a beam measuring 9.5 metres and a draft of 3.2 m. Officially she's U.S. official number 518235. It's free to add CG 30 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put CG 30 on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.