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.
Passenger
CONSTITUTION
MMSI 368352260 · Call sign WDD4734
Not yet on Master's MateType
Passenger
Flag
USALength
26 m
Beam
8 m
Call sign
WDD4734
Official No.
9824343
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
An American passenger craft, CONSTITUTION measures 26 metres. Her hull carries 8 metres in the beam. She's on record as MMSI 368352260, call sign WDD4734. CONSTITUTION is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard CONSTITUTION safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 06:09 UTC
Position
32.7246° N, 117.2260° W
Status
Under way (engine)
Speed
0.1 kn
Course
360°
Sailing 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put CONSTITUTION on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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 CONSTITUTION and switch it all on
Free to join · nothing to install to start · cancel anytime
About CONSTITUTION
What kind of vessel is CONSTITUTION?
CONSTITUTION is a Passenger flagged to United States of America.
Where was CONSTITUTION last seen?
CONSTITUTION was last reported in off Southern California in Jun 2026 on public AIS.
What is CONSTITUTION's MMSI?
CONSTITUTION's MMSI is 368352260. Call sign WDD4734.
How big is CONSTITUTION?
CONSTITUTION is about 26 m long, 8 m on the beam.
Is CONSTITUTION on the Master's Mate Safety Initiative Network?
Not yet. If CONSTITUTION is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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