Master's MateSafety Initiative Network
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.
Public Vessel, Unclassified
RIG 21
U.S. Official No. 1163798
Not yet on Master's MateType
Public Vessel, Unclassified
Flag
USALength
64 m
Beam
16.5 m
Draft
4.9 m
First reported
Jun 2026
AIS reports
1
RIG 21, a boat flagged in the United States, measures 64 metres on deck. Below, she has a 16.5 m beam and a draft measuring 4.9 metres. On the registers she's U.S. official number 1163798. It's free to add RIG 21 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card
Is RIG 21 your boat?
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
Wherever RIG 21 roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put RIG 21 on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim RIG 21 and switch it all on
Free to join · nothing to install to start · cancel anytime
About RIG 21
What kind of vessel is RIG 21?
RIG 21 is a Public Vessel, Unclassified flagged to United States of America.
What is RIG 21's U.S. Official No.?
RIG 21's U.S. Official No. is 1163798.
How big is RIG 21?
RIG 21 is about 64 m long, 16.5 m on the beam, drawing 4.9 m.
Is RIG 21 on the Master's Mate Safety Initiative Network?
Not yet. If RIG 21 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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