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.
High-speed Craft
MO4
MMSI 275512000 · Call sign YLRC
Not yet on Master's MateType
High-speed Craft
Flag
LVALength
23 m
Beam
8 m
Draft
1.7 m
Call sign
YLRC
IMO
8569052
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Out of Latvia, MO4 is a 23-metre passenger ship. Below, she has a beam measuring 8 metres and a draft measuring 1.7 metres. Her papers read MMSI 275512000, call sign YLRC, IMO 8569052. It's free to add MO4 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard MO4 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 03:51 UTC
Position
53.6015° N, 8.1470° E
Status
Moored
Speed
0.0 kn
Course
224°
Destination
SEA TRIALS
ETA
06-03 10:31 UTC
Sailing the North Sea? 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 MO4 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 MO4 and switch it all on
Free to join · nothing to install to start · cancel anytime
About MO4
What kind of vessel is MO4?
MO4 is a High-speed Craft flagged to Latvia.
Where was MO4 last seen?
MO4 was last reported in the North Sea in Jun 2026 on public AIS.
What is MO4's MMSI?
MO4's MMSI is 275512000. Call sign YLRC. IMO 8569052.
How big is MO4?
MO4 is about 23 m long, 8 m on the beam, drawing 1.7 m.
Is MO4 on the Master's Mate Safety Initiative Network?
Not yet. If MO4 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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