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
Belomorsky 21
MMSI 273457280
Not yet on Master's MateFlag
RUSLength
78 m
IMO
8935847
AIS reports
2
Belomorsky 21, a vessel flying the flag of Russia, measures 78 metres on deck. On AIS she appears as MMSI 273457280, IMO 8935847. It's free to add Belomorsky 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 Belomorsky 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 Belomorsky 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 Belomorsky 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 Belomorsky 21 and switch it all on
Free to join · nothing to install to start · cancel anytime
About Belomorsky 21
What kind of vessel is Belomorsky 21?
Belomorsky 21 is a vessel flagged to Russia.
What is Belomorsky 21's MMSI?
Belomorsky 21's MMSI is 273457280. IMO 8935847.
How big is Belomorsky 21?
Belomorsky 21 is about 78 m long.
Is Belomorsky 21 on the Master's Mate Safety Initiative Network?
Not yet. If Belomorsky 21 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.