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.
Tanker
POLAR ENDEAVOUR
MMSI 338371000 · Call sign WCAJ
Not yet on Master's MateType
Tanker
Flag
USALength
273 m
Beam
46 m
Draft
17.5 m
Call sign
WCAJ
IMO
9193551
Official No.
1106807
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
89
On the American registry, POLAR ENDEAVOUR is a 273-metre tank ship. POLAR ENDEAVOUR has a beam measuring 46 metres and a 17.5 m draft. Find her under MMSI 338371000, call sign WCAJ, IMO 9193551. The Master's Mate Safety Initiative Network welcomes POLAR ENDEAVOUR — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for commercial operators
Eyes on POLAR ENDEAVOUR, 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
Last known position · Jun 4, 2026
Position
33.7565° N, 118.2183° W
Transiting off Southern California? 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 ENDEAVOUR 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 ENDEAVOUR and switch it all on
Free to join · nothing to install to start · cancel anytime
About POLAR ENDEAVOUR
What kind of vessel is POLAR ENDEAVOUR?
POLAR ENDEAVOUR is a Tanker flagged to United States of America.
Where was POLAR ENDEAVOUR last seen?
POLAR ENDEAVOUR was last reported in off Southern California in Jun 2026 on public AIS.
What is POLAR ENDEAVOUR's MMSI?
POLAR ENDEAVOUR's MMSI is 338371000. Call sign WCAJ. IMO 9193551.
How big is POLAR ENDEAVOUR?
POLAR ENDEAVOUR is about 273 m long, 46 m on the beam, drawing 17.5 m.
Is POLAR ENDEAVOUR on the Master's Mate Safety Initiative Network?
Not yet. If POLAR ENDEAVOUR is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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