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.
Unclassified
BLACK ROCK 2
U.S. Official No. 940411
Not yet on Master's MateType
Unclassified
Flag
USALength
7.7 m
Beam
3.7 m
Draft
1.2 m
First reported
Jun 2026
AIS reports
1
Registered in the United States, BLACK ROCK 2 is a 7.7-metre boat. She carries a beam measuring 3.7 metres and a 1.2-metre draft. She's listed under U.S. official number 940411. BLACK ROCK 2 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
Is BLACK ROCK 2 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 BLACK ROCK 2 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 BLACK ROCK 2 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 BLACK ROCK 2 and switch it all on
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About BLACK ROCK 2
What kind of vessel is BLACK ROCK 2?
BLACK ROCK 2 is a Unclassified flagged to United States of America.
What is BLACK ROCK 2's U.S. Official No.?
BLACK ROCK 2's U.S. Official No. is 940411.
How big is BLACK ROCK 2?
BLACK ROCK 2 is about 7.7 m long, 3.7 m on the beam, drawing 1.2 m.
Is BLACK ROCK 2 on the Master's Mate Safety Initiative Network?
Not yet. If BLACK ROCK 2 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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