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.
Freight Ship
Polar Bear
MMSI 367178240 · Call sign WDD6834
Not yet on Master's MateType
Freight Ship
Flag
USALength
41 m
Beam
10.4 m
Draft
2.4 m
Call sign
WDD6834
IMO
9056246
Official No.
974480
AIS reports
1
Out of the United States, Polar Bear is a 41-metre general cargo ship. She has a beam measuring 10.4 metres and a draft measuring 2.4 metres. She's listed under MMSI 367178240, call sign WDD6834, IMO 9056246. Sign Polar Bear up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for commercial operators
Eyes on Polar Bear, 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 Polar Bear 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 Polar Bear 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 Polar Bear and switch it all on
Free to join · nothing to install to start · cancel anytime
About Polar Bear
What kind of vessel is Polar Bear?
Polar Bear is a Freight Ship flagged to United States of America.
What is Polar Bear's MMSI?
Polar Bear's MMSI is 367178240. Call sign WDD6834. IMO 9056246.
How big is Polar Bear?
Polar Bear is about 41 m long, 10.4 m on the beam, drawing 2.4 m.
Is Polar Bear on the Master's Mate Safety Initiative Network?
Not yet. If Polar Bear is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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