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
JOKER
MMSI 368031660 · Call sign WDK2018
Not yet on Master's MateType
Tug
Flag
USALength
26 m
Beam
8 m
Draft
4 m
Call sign
WDK2018
IMO
8969317
Official No.
602379
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
On the American registry, JOKER is a 26-metre tugboat. JOKER has a 8-metre beam and a 4 m draft. Her registration reads MMSI 368031660, call sign WDK2018, IMO 8969317. Put JOKER on the free Master's Mate Safety Initiative Network and keep the working fleet looking out for each other.
Free forever · No credit card · for working boats
Built for boats that work — like JOKER.
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 12:15 UTC
Position
39.2064° N, 76.5040° W
Status
Pushing ahead
Speed
0.6 kn
Course
178°
Destination
BALTIMORE
ETA
01-26 10:30 UTC
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 JOKER 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 JOKER and switch it all on
Free to join · nothing to install to start · cancel anytime
About JOKER
What kind of vessel is JOKER?
JOKER is a Tug flagged to United States of America.
Where was JOKER last seen?
JOKER was last reported in Chesapeake Bay in Jun 2026 on public AIS.
What is JOKER's MMSI?
JOKER's MMSI is 368031660. Call sign WDK2018. IMO 8969317.
How big is JOKER?
JOKER is about 26 m long, 8 m on the beam, drawing 4 m.
Is JOKER on the Master's Mate Safety Initiative Network?
Not yet. If JOKER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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