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
HARRY STONE
MMSI 265626130 · Call sign SJMI
Not yet on Master's MateType
Tug
Flag
SWELength
24 m
Beam
8 m
Draft
4.5 m
Call sign
SJMI
IMO
7405522
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
HARRY STONE, a tug flying the Swedish flag, measures 24 metres on deck. She has a 8-metre beam and a draft measuring 4.5 metres. On AIS she appears as MMSI 265626130, call sign SJMI, IMO 7405522. HARRY STONE can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
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Built for boats that work — like HARRY STONE.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Live AIS position · Jun 9, 2026 14:51 UTC
Position
56.1563° N, 14.8292° E
Status
Restricted manoeuvrability
Speed
0.0 kn
Course
309°
Destination
KARLSHAMN
ETA
08-14 10:00 UTC
Working the Baltic 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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Joining the Safety Initiative Network doesn't just put HARRY STONE 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 HARRY STONE and switch it all on
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About HARRY STONE
What kind of vessel is HARRY STONE?
HARRY STONE is a Tug flagged to Sweden.
Where was HARRY STONE last seen?
HARRY STONE was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is HARRY STONE's MMSI?
HARRY STONE's MMSI is 265626130. Call sign SJMI. IMO 7405522.
How big is HARRY STONE?
HARRY STONE is about 24 m long, 8 m on the beam, drawing 4.5 m.
Is HARRY STONE on the Master's Mate Safety Initiative Network?
Not yet. If HARRY STONE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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