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
Champion
MMSI 303349000 · Call sign WDJ9411
Not yet on Master's MateType
Towing Vessel
Flag
USALength
42.8 m
Beam
16.5 m
Draft
5.6 m
Call sign
WDJ9411
IMO
9824215
Official No.
694279
AIS reports
4
Registered in the United States, Champion is a 42.8-metre utility boat. She carries a beam measuring 16.5 metres and a 5.6-metre draft. She's listed under MMSI 303349000, call sign WDJ9411, IMO 9824215. Join Champion to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for working boats
Built for boats that work — like Champion.
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 Champion 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 Champion 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 Champion and switch it all on
Free to join · nothing to install to start · cancel anytime
About Champion
What kind of vessel is Champion?
Champion is a Towing Vessel flagged to United States of America.
What is Champion's MMSI?
Champion's MMSI is 303349000. Call sign WDJ9411. IMO 9824215.
How big is Champion?
Champion is about 42.8 m long, 16.5 m on the beam, drawing 5.6 m.
Is Champion on the Master's Mate Safety Initiative Network?
Not yet. If Champion is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.