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.
Industrial Vessel
JSA34 B
U.S. Official No. 291771
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
52.2 m
Beam
12.8 m
Draft
4.8 m
First reported
Jun 2026
AIS reports
1
JSA34 B, a cargo vessel listed on the the United States registry, measures 52.2 metres on deck. JSA34 B has a 12.8 m beam and a 4.8 m draft. Her registration reads U.S. official number 291771. Claim JSA34 B free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on JSA34 B, around the clock.
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
Wherever JSA34 B 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 · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put JSA34 B on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim JSA34 B and switch it all on
Free to join · nothing to install to start · cancel anytime
About JSA34 B
What kind of vessel is JSA34 B?
JSA34 B is a Industrial Vessel flagged to United States of America.
What is JSA34 B's U.S. Official No.?
JSA34 B's U.S. Official No. is 291771.
How big is JSA34 B?
JSA34 B is about 52.2 m long, 12.8 m on the beam, drawing 4.8 m.
Is JSA34 B on the Master's Mate Safety Initiative Network?
Not yet. If JSA34 B is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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