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
EMMA C
MMSI 366834640 · Call sign WDP5200
Not yet on Master's MateType
Tug
Flag
USALength
21 m
Beam
9 m
Draft
2.7 m
Call sign
WDP5200
Official No.
583105
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
EMMA C, an American tugboat, measures 21 metres on deck. EMMA C has a 9 m beam and a 2.7 m draft. She broadcasts as MMSI 366834640, call sign WDP5200. EMMA C 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 EMMA C.
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 11:00 UTC
Position
33.7533° N, 118.2237° W
Status
Moored
Speed
0.0 kn
Course
263°
Destination
XX XXX>US^0V0V
Working off Southern California? 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 EMMA C 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 EMMA C and switch it all on
Free to join · nothing to install to start · cancel anytime
About EMMA C
What kind of vessel is EMMA C?
EMMA C is a Tug flagged to United States of America.
Where was EMMA C last seen?
EMMA C was last reported in off Southern California in Jun 2026 on public AIS.
What is EMMA C's MMSI?
EMMA C's MMSI is 366834640. Call sign WDP5200.
How big is EMMA C?
EMMA C is about 21 m long, 9 m on the beam, drawing 2.7 m.
Is EMMA C on the Master's Mate Safety Initiative Network?
Not yet. If EMMA C 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.