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.
High-speed Craft
SEA SPEED
MMSI 477996493 · Call sign VRS5741
Not yet on Master's MateType
High-speed Craft
Flag
HKGLength
32 m
Beam
8 m
Call sign
VRS5741
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
60
On the Hong Kong registry, SEA SPEED is a 32-metre ferry vessel. She has a 8 m beam. Officially she's MMSI 477996493, call sign VRS5741. Keep every soul aboard SEA SPEED covered with the free Master's Mate Safety Initiative Network.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard SEA SPEED safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
22.2882° N, 114.1568° E
Sailing 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SEA SPEED on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
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 SEA SPEED and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA SPEED
What kind of vessel is SEA SPEED?
SEA SPEED is a High-speed Craft flagged to Hong Kong S.A.R..
Where was SEA SPEED last seen?
SEA SPEED was last reported in the South China Sea in Jun 2026 on public AIS.
What is SEA SPEED's MMSI?
SEA SPEED's MMSI is 477996493. Call sign VRS5741.
How big is SEA SPEED?
SEA SPEED is about 32 m long, 8 m on the beam.
Is SEA SPEED on the Master's Mate Safety Initiative Network?
Not yet. If SEA SPEED is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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