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.
Vessel
Betula Arrow
MMSI 351831000
Not yet on Master's MateFlag
PANLength
199.9 m
IMO
9720055
AIS reports
2
Betula Arrow is a boat registered in Panama, 199.9 metres overall. On AIS she appears as MMSI 351831000, IMO 9720055. Sign Betula Arrow up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
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Is Betula Arrow 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 Betula Arrow roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Betula Arrow 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 Betula Arrow and switch it all on
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About Betula Arrow
What kind of vessel is Betula Arrow?
Betula Arrow is a vessel flagged to Panama.
What is Betula Arrow's MMSI?
Betula Arrow's MMSI is 351831000. IMO 9720055.
How big is Betula Arrow?
Betula Arrow is about 199.9 m long.
Is Betula Arrow on the Master's Mate Safety Initiative Network?
Not yet. If Betula Arrow is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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