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
MARY ANN
MMSI 367532640 · Call sign WDG4070
Not yet on Master's MateType
Towing Vessel
Flag
USALength
7.8 m
Beam
4.3 m
Draft
1.5 m
Call sign
WDG4070
Official No.
1240061
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
33
MARY ANN, a harbour workboat flagged in the United States, measures 7.8 metres on deck. Below, she has 4.3 metres in the beam and a draft of 1.5 m. She's on record as MMSI 367532640, call sign WDG4070. MARY ANN earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.
Free forever · No credit card · for working boats
Built for boats that work — like MARY ANN.
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 12:40 UTC
Position
41.8970° N, 87.6445° W
Status
Under way (engine)
Speed
0.0 kn
Course
360°
Working Lake Michigan? 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 ANN 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 ANN and switch it all on
Free to join · nothing to install to start · cancel anytime
About MARY ANN
What kind of vessel is MARY ANN?
MARY ANN is a Towing Vessel flagged to United States of America.
Where was MARY ANN last seen?
MARY ANN was last reported in Lake Michigan in Jun 2026 on public AIS.
What is MARY ANN's MMSI?
MARY ANN's MMSI is 367532640. Call sign WDG4070.
How big is MARY ANN?
MARY ANN is about 7.8 m long, 4.3 m on the beam, drawing 1.5 m.
Is MARY ANN on the Master's Mate Safety Initiative Network?
Not yet. If MARY ANN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.