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
YUHAN1
MMSI 440305160 · Call sign 162805
Not yet on Master's MateType
Tanker
Flag
KORLength
50 m
Beam
9 m
Draft
3.9 m
Call sign
162805
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
On the South Korean registry, YUHAN1 is a 50-metre tank vessel. Her hull carries a 9-metre beam and a draft of 3.9 m. Her papers read MMSI 440305160, call sign 162805. Put YUHAN1 on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for commercial operators
Eyes on YUHAN1, 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 13:36 UTC
Position
35.1214° N, 129.0492° E
Status
Under way (engine)
Speed
0.0 kn
Course
325°
Destination
ULSAN
ETA
10-13 17:00 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 YUHAN1 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 YUHAN1 and switch it all on
Free to join · nothing to install to start · cancel anytime
About YUHAN1
What kind of vessel is YUHAN1?
YUHAN1 is a Tanker flagged to South Korea.
Where was YUHAN1 last seen?
YUHAN1 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is YUHAN1's MMSI?
YUHAN1's MMSI is 440305160. Call sign 162805.
How big is YUHAN1?
YUHAN1 is about 50 m long, 9 m on the beam, drawing 3.9 m.
Is YUHAN1 on the Master's Mate Safety Initiative Network?
Not yet. If YUHAN1 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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