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.
Tug
SINHEUNG8HO
MMSI 440503700 · Call sign 000552
Not yet on Master's MateType
Tug
Flag
KORLength
18 m
Beam
9 m
Draft
3.5 m
Call sign
000552
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
SINHEUNG8HO is a South Korean working tug, 18 metres from stem to stern. She's built with a beam measuring 9 metres and a 3.5-metre draft. She broadcasts as MMSI 440503700, call sign 000552. Give SINHEUNG8HO the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for working boats
Built for boats that work — like SINHEUNG8HO.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 13:20 UTC
Position
34.9499° N, 128.9815° E
Status
Under way (sailing)
Speed
6.4 kn
Course
228°
Destination
0
Working the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SINHEUNG8HO on the map. It hands you the full bridge:
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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 SINHEUNG8HO and switch it all on
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About SINHEUNG8HO
What kind of vessel is SINHEUNG8HO?
SINHEUNG8HO is a Tug flagged to South Korea.
Where was SINHEUNG8HO last seen?
SINHEUNG8HO was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SINHEUNG8HO's MMSI?
SINHEUNG8HO's MMSI is 440503700. Call sign 000552.
How big is SINHEUNG8HO?
SINHEUNG8HO is about 18 m long, 9 m on the beam, drawing 3.5 m.
Is SINHEUNG8HO on the Master's Mate Safety Initiative Network?
Not yet. If SINHEUNG8HO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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