U.S. Official No. 549843
Not yet on Master's MateWW-3 is a barge listed on the the United States registry, spanning 72.2 metres. Below, she has a beam of 13.7 m and a draft measuring 3 metres. Find her under U.S. official number 549843. Bring WW-3 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
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 WW-3 on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.