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
SITC YUNCHENG
MMSI 477745800 · Call sign VRUL4
Not yet on Master's MateType
Cargo
Flag
HKGLength
189 m
Beam
32 m
Draft
10.9 m
Call sign
VRUL4
IMO
9926104
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
25
SITC YUNCHENG flies the Hong Kong flag — an 189-metre general cargo ship. She has a 32 m beam and a draft measuring 10.9 metres. On AIS she shows as MMSI 477745800, call sign VRUL4, IMO 9926104. Big or small, every hull benefits from the free Master's Mate Safety Initiative Network — SITC YUNCHENG included.
Free forever · No credit card · for commercial operators
Eyes on SITC YUNCHENG, 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
Last known position · Jun 4, 2026
Position
22.3359° N, 114.1250° E
Transiting the South China 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SITC YUNCHENG 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 SITC YUNCHENG and switch it all on
Free to join · nothing to install to start · cancel anytime
About SITC YUNCHENG
What kind of vessel is SITC YUNCHENG?
SITC YUNCHENG is a Cargo flagged to Hong Kong S.A.R..
Where was SITC YUNCHENG last seen?
SITC YUNCHENG was last reported in the South China Sea in Jun 2026 on public AIS.
What is SITC YUNCHENG's MMSI?
SITC YUNCHENG's MMSI is 477745800. Call sign VRUL4. IMO 9926104.
How big is SITC YUNCHENG?
SITC YUNCHENG is about 189 m long, 32 m on the beam, drawing 10.9 m.
Is SITC YUNCHENG on the Master's Mate Safety Initiative Network?
Not yet. If SITC YUNCHENG is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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