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 EMMA
MMSI 367686010 · Call sign WDM5327
Not yet on Master's MateType
Tug
Flag
USALength
33 m
Beam
10 m
Call sign
WDM5327
Official No.
563653
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
MARY EMMA, an American working tug, measures 33 metres on deck. She's built with a 10 m beam. Her papers read MMSI 367686010, call sign WDM5327. Working vessels like MARY EMMA are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.
Free forever · No credit card · for working boats
Built for boats that work — like MARY EMMA.
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 13:31 UTC
Position
39.1992° N, 76.5275° W
Status
Under way (engine)
Speed
0.0 kn
Course
216°
Destination
BALTIMORE DREDGE OPS
Working Chesapeake 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 MARY EMMA 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 EMMA and switch it all on
Free to join · nothing to install to start · cancel anytime
About MARY EMMA
What kind of vessel is MARY EMMA?
MARY EMMA is a Tug flagged to United States of America.
Where was MARY EMMA last seen?
MARY EMMA was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is MARY EMMA's MMSI?
MARY EMMA's MMSI is 367686010. Call sign WDM5327.
How big is MARY EMMA?
MARY EMMA is about 33 m long, 10 m on the beam.
Is MARY EMMA on the Master's Mate Safety Initiative Network?
Not yet. If MARY EMMA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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