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.
Cargo
OPTIMIST SR
MMSI 244740580 · Call sign PC4882
Not yet on Master's MateType
Cargo
Flag
NLDLength
56 m
Beam
8 m
Draft
1 m
Call sign
PC4882
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
OPTIMIST SR is an ocean freighter under Dutch registration, 56 metres LOA. She has a 8-metre beam and a draft of 1 m. Officially she's MMSI 244740580, call sign PC4882. Join OPTIMIST SR to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on OPTIMIST SR, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 10:35 UTC
Position
53.3347° N, 7.1676° E
Speed
0.0 kn
Course
360°
Destination
SAMBEEK
ETA
10-30 17:00 UTC
Transiting 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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put OPTIMIST SR on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 OPTIMIST SR and switch it all on
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About OPTIMIST SR
What kind of vessel is OPTIMIST SR?
OPTIMIST SR is a Cargo flagged to Netherlands.
Where was OPTIMIST SR last seen?
OPTIMIST SR was last reported in the North Sea in Jun 2026 on public AIS.
What is OPTIMIST SR's MMSI?
OPTIMIST SR's MMSI is 244740580. Call sign PC4882.
How big is OPTIMIST SR?
OPTIMIST SR is about 56 m long, 8 m on the beam, drawing 1 m.
Is OPTIMIST SR on the Master's Mate Safety Initiative Network?
Not yet. If OPTIMIST SR is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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