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
Circle T
MMSI 367446870 · Call sign WDF4013
Not yet on Master's MateType
Recreational
Flag
USALength
8.9 m
Beam
3 m
Draft
1.6 m
Call sign
WDF4013
Official No.
1225676
Hull ID
FMLT2915K910
AIS reports
1
Registered in the United States, Circle T is an 8.9-metre cruising boat. She carries a 3-metre beam and a 1.6-metre draft. Officially she's MMSI 367446870, call sign WDF4013. Bring Circle T aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for recreational captains
Keep Circle T 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
Wherever Circle T 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Circle T 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 Circle T and switch it all on
Free to join · nothing to install to start · cancel anytime
About Circle T
What kind of vessel is Circle T?
Circle T is a Recreational flagged to United States of America.
What is Circle T's MMSI?
Circle T's MMSI is 367446870. Call sign WDF4013.
How big is Circle T?
Circle T is about 8.9 m long, 3 m on the beam, drawing 1.6 m.
Is Circle T on the Master's Mate Safety Initiative Network?
Not yet. If Circle T is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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