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.
Towing Vessel
FORT DEFIANCE
MMSI 368010950 · Call sign WDJ7877
Not yet on Master's MateType
Towing Vessel
Flag
USALength
114 m
Beam
34 m
Draft
3.1 m
Call sign
WDJ7877
Official No.
1279277
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
81
FORT DEFIANCE is an American workboat, 114 metres in length. She carries a 34 m beam and a 3.1 m draft. Her papers read MMSI 368010950, call sign WDJ7877. FORT DEFIANCE is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for working boats
Built for boats that work — like FORT DEFIANCE.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
29.7930° N, 95.0676° W
Working the Gulf of Mexico? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put FORT DEFIANCE on the map. It hands you the full bridge:
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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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 FORT DEFIANCE and switch it all on
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About FORT DEFIANCE
What kind of vessel is FORT DEFIANCE?
FORT DEFIANCE is a Towing Vessel flagged to United States of America.
Where was FORT DEFIANCE last seen?
FORT DEFIANCE was last reported in the Gulf of Mexico in Jun 2026 on public AIS.
What is FORT DEFIANCE's MMSI?
FORT DEFIANCE's MMSI is 368010950. Call sign WDJ7877.
How big is FORT DEFIANCE?
FORT DEFIANCE is about 114 m long, 34 m on the beam, drawing 3.1 m.
Is FORT DEFIANCE on the Master's Mate Safety Initiative Network?
Not yet. If FORT DEFIANCE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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