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
Sun Chief
MMSI 367590860 · Call sign WDG9758
Not yet on Master's MateType
Towing Vessel
Flag
USALength
19.5 m
Beam
7.7 m
Draft
2.3 m
Call sign
WDG9758
IMO
8971566
Official No.
536753
AIS reports
1
Out of the United States, Sun Chief is a 19.5-metre utility vessel. She carries a beam of 7.7 m and a 2.3-metre draft. Her registration reads MMSI 367590860, call sign WDG9758, IMO 8971566. Working vessels like Sun Chief are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.
Free forever · No credit card · for working boats
Built for boats that work — like Sun Chief.
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 Sun Chief 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 Sun Chief 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 Sun Chief and switch it all on
Free to join · nothing to install to start · cancel anytime
About Sun Chief
What kind of vessel is Sun Chief?
Sun Chief is a Towing Vessel flagged to United States of America.
What is Sun Chief's MMSI?
Sun Chief's MMSI is 367590860. Call sign WDG9758. IMO 8971566.
How big is Sun Chief?
Sun Chief is about 19.5 m long, 7.7 m on the beam, drawing 2.3 m.
Is Sun Chief on the Master's Mate Safety Initiative Network?
Not yet. If Sun Chief is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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