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
Defiant
MMSI 366998470 · Call sign WDC2842
Not yet on Master's MateType
Towing Vessel
Flag
USALength
29.8 m
Beam
10.4 m
Draft
3.3 m
Call sign
WDC2842
IMO
7531838
Official No.
576035
AIS reports
1
Defiant is an American 29.8-metre service vessel. Defiant has 10.4 metres in the beam and a 3.3 m draft. She's listed under MMSI 366998470, call sign WDC2842, IMO 7531838. Defiant is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for working boats
Built for boats that work — like Defiant.
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
Wherever Defiant 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Defiant 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 Defiant and switch it all on
Free to join · nothing to install to start · cancel anytime
About Defiant
What kind of vessel is Defiant?
Defiant is a Towing Vessel flagged to United States of America.
What is Defiant's MMSI?
Defiant's MMSI is 366998470. Call sign WDC2842. IMO 7531838.
How big is Defiant?
Defiant is about 29.8 m long, 10.4 m on the beam, drawing 3.3 m.
Is Defiant on the Master's Mate Safety Initiative Network?
Not yet. If Defiant is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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