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.
Recreational
THIRD TRI
MMSI 368180390 · Call sign WDL9584
Not yet on Master's MateType
Recreational
Flag
USALength
11.4 m
Beam
6.7 m
Draft
1.9 m
Call sign
WDL9584
Official No.
678994
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
THIRD TRI is an American pleasure boat, 11.4 metres LOA. She has a 6.7-metre beam and a draft of 1.9 m. She's on record as MMSI 368180390, call sign WDL9584. Sign THIRD TRI 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 recreational captains
Keep THIRD TRI looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 06:17 UTC
Position
33.7207° N, 118.2769° W
Status
Under way (engine)
Speed
0.1 kn
Course
181°
Cruising 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put THIRD TRI 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 THIRD TRI and switch it all on
Free to join · nothing to install to start · cancel anytime
About THIRD TRI
What kind of vessel is THIRD TRI?
THIRD TRI is a Recreational flagged to United States of America.
Where was THIRD TRI last seen?
THIRD TRI was last reported in off Southern California in Jun 2026 on public AIS.
What is THIRD TRI's MMSI?
THIRD TRI's MMSI is 368180390. Call sign WDL9584.
How big is THIRD TRI?
THIRD TRI is about 11.4 m long, 6.7 m on the beam, drawing 1.9 m.
Is THIRD TRI on the Master's Mate Safety Initiative Network?
Not yet. If THIRD TRI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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