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.
Cargo
H SEAL
MMSI 525114058 · Call sign YCUU2
Not yet on Master's MateType
Cargo
Flag
IDNLength
129 m
Beam
20 m
Draft
7.6 m
Call sign
YCUU2
IMO
9455595
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
Registered in Indonesia, H SEAL is a 129-metre general cargo ship. She has a beam of 20 m and a draft measuring 7.6 metres. On AIS she shows as MMSI 525114058, call sign YCUU2, IMO 9455595. Claim H SEAL free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on H SEAL, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
6.0308° S, 106.8904° E
Wherever H SEAL 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put H SEAL on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 H SEAL and switch it all on
Free to join · nothing to install to start · cancel anytime
About H SEAL
What kind of vessel is H SEAL?
H SEAL is a Cargo flagged to Indonesia.
Where was H SEAL last seen?
H SEAL was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is H SEAL's MMSI?
H SEAL's MMSI is 525114058. Call sign YCUU2. IMO 9455595.
How big is H SEAL?
H SEAL is about 129 m long, 20 m on the beam, drawing 7.6 m.
Is H SEAL on the Master's Mate Safety Initiative Network?
Not yet. If H SEAL is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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