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.
Pleasure Craft
ON LIBERTY
MMSI 232037842 · Call sign MJWO4
Not yet on Master's MateType
Pleasure Craft
Flag
GBRLength
26 m
Beam
9 m
Draft
1.7 m
Call sign
MJWO4
First reported
Apr 2026
Last reported
Apr 2026
AIS reports
85
On the British registry, ON LIBERTY is a 26-metre recreational vessel. Her hull carries a 9 m beam and a draft measuring 1.7 metres. She's on record as MMSI 232037842, call sign MJWO4. Whether she's at the dock or out for the weekend, ON LIBERTY is covered by the free Master's Mate Safety Initiative Network — alarms, weather, and a watching fleet.
Free forever · No credit card · for recreational captains
Keep ON LIBERTY looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 21:55 UTC
Position
38.6506° N, 76.4366° W
Status
Under way (engine)
Speed
10.3 kn
Course
357°
Destination
US ANP
Cruising 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put ON LIBERTY on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim ON LIBERTY and switch it all on
Free to join · nothing to install to start · cancel anytime
About ON LIBERTY
What kind of vessel is ON LIBERTY?
ON LIBERTY is a Pleasure Craft flagged to United Kingdom.
Where was ON LIBERTY last seen?
ON LIBERTY was last reported in Chesapeake Bay in Apr 2026 on public AIS.
What is ON LIBERTY's MMSI?
ON LIBERTY's MMSI is 232037842. Call sign MJWO4.
How big is ON LIBERTY?
ON LIBERTY is about 26 m long, 9 m on the beam, drawing 1.7 m.
Is ON LIBERTY on the Master's Mate Safety Initiative Network?
Not yet. If ON LIBERTY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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