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
SIDNEY FOSS
MMSI 366934310 · Call sign WYL5445
Not yet on Master's MateType
Towing Vessel
Flag
USALength
36.2 m
Beam
10.4 m
Draft
4.5 m
Call sign
WYL5445
IMO
7626190
Official No.
578098
AIS reports
1
SIDNEY FOSS flies the American flag — a 36.2-metre workboat. SIDNEY FOSS has a beam measuring 10.4 metres and a 4.5 m draft. On AIS she shows as MMSI 366934310, call sign WYL5445, IMO 7626190. SIDNEY FOSS is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for working boats
Built for boats that work — like SIDNEY FOSS.
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 SIDNEY FOSS 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 SIDNEY FOSS 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 SIDNEY FOSS and switch it all on
Free to join · nothing to install to start · cancel anytime
About SIDNEY FOSS
What kind of vessel is SIDNEY FOSS?
SIDNEY FOSS is a Towing Vessel flagged to United States of America.
What is SIDNEY FOSS's MMSI?
SIDNEY FOSS's MMSI is 366934310. Call sign WYL5445. IMO 7626190.
How big is SIDNEY FOSS?
SIDNEY FOSS is about 36.2 m long, 10.4 m on the beam, drawing 4.5 m.
Is SIDNEY FOSS on the Master's Mate Safety Initiative Network?
Not yet. If SIDNEY FOSS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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