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.
Research Vessel
Polaris Supreme
MMSI 303676000 · Call sign WDM2209
Not yet on Master's MateType
Research Vessel
Flag
USALength
28.7 m
Beam
8.6 m
Draft
4 m
Call sign
WDM2209
IMO
7942001
Official No.
553713
AIS reports
3
Polaris Supreme is an American 28.7-metre boat. Below, she has a beam of 8.6 m and a draft of 4 m. On the registers she's MMSI 303676000, call sign WDM2209, IMO 7942001. Claim Polaris Supreme free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is Polaris Supreme 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 Polaris Supreme 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 Polaris Supreme 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 Polaris Supreme and switch it all on
Free to join · nothing to install to start · cancel anytime
About Polaris Supreme
What kind of vessel is Polaris Supreme?
Polaris Supreme is a Research Vessel flagged to United States of America.
What is Polaris Supreme's MMSI?
Polaris Supreme's MMSI is 303676000. Call sign WDM2209. IMO 7942001.
How big is Polaris Supreme?
Polaris Supreme is about 28.7 m long, 8.6 m on the beam, drawing 4 m.
Is Polaris Supreme on the Master's Mate Safety Initiative Network?
Not yet. If Polaris Supreme is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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