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
BTG Ulriken
MMSI 311000991
Not yet on Master's MateFlag
BHSLength
229 m
IMO
9887346
AIS reports
2
BTG Ulriken is a Bahamian boat, 229 metres long. Officially she's MMSI 311000991, IMO 9887346. It's free to add BTG Ulriken 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 BTG Ulriken 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 BTG Ulriken 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 BTG Ulriken 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 BTG Ulriken and switch it all on
Free to join · nothing to install to start · cancel anytime
About BTG Ulriken
What kind of vessel is BTG Ulriken?
BTG Ulriken is a vessel flagged to The Bahamas.
What is BTG Ulriken's MMSI?
BTG Ulriken's MMSI is 311000991. IMO 9887346.
How big is BTG Ulriken?
BTG Ulriken is about 229 m long.
Is BTG Ulriken on the Master's Mate Safety Initiative Network?
Not yet. If BTG Ulriken 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.