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
Spartan
MMSI 366888760 · Call sign WDH8035
Not yet on Master's MateType
Towing Vessel
Flag
USALength
26 m
Beam
8.7 m
Draft
2.8 m
Call sign
WDH8035
IMO
8867870
Official No.
518285
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
On the American registry, Spartan is a 26-metre working craft. Below, she has a beam of 8.7 m and a draft of 2.8 m. Officially she's MMSI 366888760, call sign WDH8035, IMO 8867870. Bring Spartan aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like Spartan.
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
Last known position · Jun 3, 2026
Position
47.9792° N, 122.2215° W
Working the Salish Sea? 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 Spartan 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 Spartan and switch it all on
Free to join · nothing to install to start · cancel anytime
About Spartan
What kind of vessel is Spartan?
Spartan is a Towing Vessel flagged to United States of America.
Where was Spartan last seen?
Spartan was last reported in the Salish Sea in Jun 2026 on public AIS.
What is Spartan's MMSI?
Spartan's MMSI is 366888760. Call sign WDH8035. IMO 8867870.
How big is Spartan?
Spartan is about 26 m long, 8.7 m on the beam, drawing 2.8 m.
Is Spartan on the Master's Mate Safety Initiative Network?
Not yet. If Spartan is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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