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
HAI DA
MMSI 477996229 · Call sign VRS5493
Not yet on Master's MateType
Tug
Flag
HKGLength
37 m
Beam
10 m
Draft
4 m
Call sign
VRS5493
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
78
On the Hong Kong registry, HAI DA is a 37-metre harbour tug. She has a beam of 10 m and a draft of 4 m. Look for MMSI 477996229, call sign VRS5493. Bring HAI DA aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like HAI DA.
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
Last known position · Jun 3, 2026
Position
22.3277° N, 114.1165° E
Working 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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put HAI DA 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 HAI DA and switch it all on
Free to join · nothing to install to start · cancel anytime
About HAI DA
What kind of vessel is HAI DA?
HAI DA is a Tug flagged to Hong Kong S.A.R..
Where was HAI DA last seen?
HAI DA was last reported in the South China Sea in Jun 2026 on public AIS.
What is HAI DA's MMSI?
HAI DA's MMSI is 477996229. Call sign VRS5493.
How big is HAI DA?
HAI DA is about 37 m long, 10 m on the beam, drawing 4 m.
Is HAI DA on the Master's Mate Safety Initiative Network?
Not yet. If HAI DA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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