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.
Tug
POLAR EXPLORER
MMSI 266450000 · Call sign SBET
Not yet on Master's MateType
Tug
Flag
SWELength
78 m
Beam
14 m
Draft
4.8 m
Call sign
SBET
IMO
7415137
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
81
POLAR EXPLORER, a working tug flying the flag of Sweden, measures 78 metres on deck. She's built with a 14-metre beam and a 4.8-metre draft. Find her under MMSI 266450000, call sign SBET, IMO 7415137. Bring POLAR EXPLORER aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like POLAR EXPLORER.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
63.4337° N, 20.5914° E
Working the Baltic Sea? 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put POLAR EXPLORER on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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 POLAR EXPLORER and switch it all on
Free to join · nothing to install to start · cancel anytime
About POLAR EXPLORER
What kind of vessel is POLAR EXPLORER?
POLAR EXPLORER is a Tug flagged to Sweden.
Where was POLAR EXPLORER last seen?
POLAR EXPLORER was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is POLAR EXPLORER's MMSI?
POLAR EXPLORER's MMSI is 266450000. Call sign SBET. IMO 7415137.
How big is POLAR EXPLORER?
POLAR EXPLORER is about 78 m long, 14 m on the beam, drawing 4.8 m.
Is POLAR EXPLORER on the Master's Mate Safety Initiative Network?
Not yet. If POLAR EXPLORER 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.