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
RIVERCAT
MMSI 366862670 · Call sign WDA9209
Not yet on Master's MateType
Tug
Flag
USALength
17 m
Beam
7 m
Draft
2.9 m
Call sign
WDA9209
IMO
8654340
Official No.
535117
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
79
RIVERCAT, an American working tug, measures 17 metres on deck. RIVERCAT has 7 metres in the beam and a 2.9-metre draft. Her registration reads MMSI 366862670, call sign WDA9209, IMO 8654340. Sign RIVERCAT up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for working boats
Built for boats that work — like RIVERCAT.
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 08:44 UTC
Position
37.9851° N, 122.4427° W
Status
Under way (engine)
Speed
0.0 kn
Course
89°
Destination
US^0T4V>0VCV
Working San Francisco Bay? 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 RIVERCAT 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 RIVERCAT and switch it all on
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About RIVERCAT
What kind of vessel is RIVERCAT?
RIVERCAT is a Tug flagged to United States of America.
Where was RIVERCAT last seen?
RIVERCAT was last reported in San Francisco Bay in Jun 2026 on public AIS.
What is RIVERCAT's MMSI?
RIVERCAT's MMSI is 366862670. Call sign WDA9209. IMO 8654340.
How big is RIVERCAT?
RIVERCAT is about 17 m long, 7 m on the beam, drawing 2.9 m.
Is RIVERCAT on the Master's Mate Safety Initiative Network?
Not yet. If RIVERCAT is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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