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
Captain Bill
MMSI 366894480 · Call sign WDB4077
Not yet on Master's MateType
Towing Vessel
Flag
USALength
34.4 m
Beam
9.6 m
Draft
4.2 m
Call sign
WDB4077
IMO
7035559
Official No.
511822
AIS reports
1
An American utility vessel, Captain Bill measures 34.4 metres. She's built with a beam measuring 9.6 metres and a 4.2-metre draft. Her papers read MMSI 366894480, call sign WDB4077, IMO 7035559. Captain Bill belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for working boats
Built for boats that work — like Captain Bill.
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 Captain Bill 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 Captain Bill 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 Captain Bill and switch it all on
Free to join · nothing to install to start · cancel anytime
About Captain Bill
What kind of vessel is Captain Bill?
Captain Bill is a Towing Vessel flagged to United States of America.
What is Captain Bill's MMSI?
Captain Bill's MMSI is 366894480. Call sign WDB4077. IMO 7035559.
How big is Captain Bill?
Captain Bill is about 34.4 m long, 9.6 m on the beam, drawing 4.2 m.
Is Captain Bill on the Master's Mate Safety Initiative Network?
Not yet. If Captain Bill is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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