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
TB PRIMA SAKTI VI
MMSI 525500963 · Call sign YBS3185
Not yet on Master's MateType
Tug
Flag
IDNLength
23 m
Beam
7 m
Draft
3.5 m
Call sign
YBS3185
IMO
9904261
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
TB PRIMA SAKTI VI, an Indonesian tug, measures 23 metres on deck. She has a 7 m beam and a draft measuring 3.5 metres. On AIS she appears as MMSI 525500963, call sign YBS3185, IMO 9904261. There's a place for TB PRIMA SAKTI VI on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card · for working boats
Built for boats that work — like TB PRIMA SAKTI VI.
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 4, 2026
Position
6.0598° S, 106.8864° E
Wherever TB PRIMA SAKTI VI roams, 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 TB PRIMA SAKTI VI 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 TB PRIMA SAKTI VI and switch it all on
Free to join · nothing to install to start · cancel anytime
About TB PRIMA SAKTI VI
What kind of vessel is TB PRIMA SAKTI VI?
TB PRIMA SAKTI VI is a Tug flagged to Indonesia.
Where was TB PRIMA SAKTI VI last seen?
TB PRIMA SAKTI VI was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is TB PRIMA SAKTI VI's MMSI?
TB PRIMA SAKTI VI's MMSI is 525500963. Call sign YBS3185. IMO 9904261.
How big is TB PRIMA SAKTI VI?
TB PRIMA SAKTI VI is about 23 m long, 7 m on the beam, drawing 3.5 m.
Is TB PRIMA SAKTI VI on the Master's Mate Safety Initiative Network?
Not yet. If TB PRIMA SAKTI VI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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