U.S. Official No. 1181630
Not yet on Master's MateMATT is a working vessel flying the flag of the United States, 7.9 metres on deck. Below, she has a beam measuring 3.7 metres and a draft measuring 1.5 metres. On the registers she's U.S. official number 1181630. Claim MATT free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put MATT on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.