The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Towing Vessel
RIGMASTER
U.S. Official No. 252306
Not yet on Master's Mate
Type
Towing Vessel
Flag
USA
Length
18.7 m
Beam
5.2 m
Draft
1.7 m
First reported
Jun 2026
AIS reports
1
RIGMASTER is a working vessel flying the flag of the United States, 18.7 metres on deck. Her hull carries a 5.2 m beam and a draft measuring 1.7 metres. On the registers she's U.S. official number 252306. RIGMASTER can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for working boats
Built for boats that work — like RIGMASTER.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.