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.
Tanker
5WOOYUNG
MMSI 440305360 · Call sign SSD
Not yet on Master's MateType
Tanker
Flag
KORLength
57 m
Beam
10 m
Draft
4.5 m
Call sign
SSD
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
77
5WOOYUNG flies the South Korean flag — a 57-metre tanker. She carries a 10 m beam and a 4.5 m draft. Find her under MMSI 440305360, call sign SSD. Big or small, every hull benefits from the free Master's Mate Safety Initiative Network — 5WOOYUNG included.
Free forever · No credit card · for commercial operators
Eyes on 5WOOYUNG, 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 05:15 UTC
Position
35.1200° N, 129.0503° E
Status
Under way (sailing)
Speed
0.0 kn
Course
158°
Destination
BUSAN
ETA
04-00 24:60 UTC
Transiting the Sea of Japan? 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put 5WOOYUNG 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 5WOOYUNG and switch it all on
Free to join · nothing to install to start · cancel anytime
About 5WOOYUNG
What kind of vessel is 5WOOYUNG?
5WOOYUNG is a Tanker flagged to South Korea.
Where was 5WOOYUNG last seen?
5WOOYUNG was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is 5WOOYUNG's MMSI?
5WOOYUNG's MMSI is 440305360. Call sign SSD.
How big is 5WOOYUNG?
5WOOYUNG is about 57 m long, 10 m on the beam, drawing 4.5 m.
Is 5WOOYUNG on the Master's Mate Safety Initiative Network?
Not yet. If 5WOOYUNG is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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