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.
Tug
WILLIAM F
MMSI 367424210 · Call sign WDM6788
Not yet on Master's MateType
Tug
Flag
USALength
23 m
Beam
7 m
Draft
2 m
Call sign
WDM6788
Official No.
503704
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
On the American registry, WILLIAM F is a 23-metre working tug. She carries 7 metres in the beam and a 2-metre draft. Officially she's MMSI 367424210, call sign WDM6788. WILLIAM F can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for working boats
Built for boats that work — like WILLIAM F.
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
Live AIS position · Jun 9, 2026 16:40 UTC
Position
45.6504° N, 122.7476° W
Status
Moored
Speed
0.0 kn
Course
316°
Destination
LONGVIEW
Wherever WILLIAM F 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 WILLIAM F 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 WILLIAM F and switch it all on
Free to join · nothing to install to start · cancel anytime
About WILLIAM F
What kind of vessel is WILLIAM F?
WILLIAM F is a Tug flagged to United States of America.
Where was WILLIAM F last seen?
WILLIAM F was last reported in around 46°N 123°W in Jun 2026 on public AIS.
What is WILLIAM F's MMSI?
WILLIAM F's MMSI is 367424210. Call sign WDM6788.
How big is WILLIAM F?
WILLIAM F is about 23 m long, 7 m on the beam, drawing 2 m.
Is WILLIAM F on the Master's Mate Safety Initiative Network?
Not yet. If WILLIAM F is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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