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.
Towing
SS T5
MMSI 441520000 · Call sign D7AK
Not yet on Master's MateType
Towing
Flag
KORLength
30 m
Beam
9 m
Draft
3.5 m
Call sign
D7AK
IMO
9242534
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
Registered in South Korea, SS T5 is a 30-metre workboat. She carries a beam measuring 9 metres and a 3.5 m draft. Her registration reads MMSI 441520000, call sign D7AK, IMO 9242534. Bring SS T5 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 SS T5.
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 12:59 UTC
Position
35.1186° N, 129.0725° E
Status
Moored
Speed
0.0 kn
Course
174°
Destination
@@@@@@@@@BL
ETA
01-01 00:00 UTC
Working 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SS T5 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 SS T5 and switch it all on
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About SS T5
What kind of vessel is SS T5?
SS T5 is a Towing flagged to South Korea.
Where was SS T5 last seen?
SS T5 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SS T5's MMSI?
SS T5's MMSI is 441520000. Call sign D7AK. IMO 9242534.
How big is SS T5?
SS T5 is about 30 m long, 9 m on the beam, drawing 3.5 m.
Is SS T5 on the Master's Mate Safety Initiative Network?
Not yet. If SS T5 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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