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
MARY M
MMSI 367539840 · Call sign WDG4762
Not yet on Master's MateType
Tug
Flag
USALength
16 m
Beam
5 m
Draft
2.3 m
Call sign
WDG4762
Official No.
1131525
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
MARY M is an American tug — 16 metres overall. Below, she has a beam measuring 5 metres and a draft measuring 2.3 metres. Her papers read MMSI 367539840, call sign WDG4762. Add MARY M to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card · for working boats
Built for boats that work — like MARY M.
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
26.7771° N, 80.0513° W
Wherever MARY M 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 MARY M 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 MARY M and switch it all on
Free to join · nothing to install to start · cancel anytime
About MARY M
What kind of vessel is MARY M?
MARY M is a Tug flagged to United States of America.
Where was MARY M last seen?
MARY M was last reported in around 27°N 80°W in Jun 2026 on public AIS.
What is MARY M's MMSI?
MARY M's MMSI is 367539840. Call sign WDG4762.
How big is MARY M?
MARY M is about 16 m long, 5 m on the beam, drawing 2.3 m.
Is MARY M on the Master's Mate Safety Initiative Network?
Not yet. If MARY M is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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