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
SIEM OPAL
MMSI 259704000 · Call sign LAXM
Not yet on Master's MateType
Tug
Flag
NORLength
91 m
Beam
22 m
Draft
6.8 m
Call sign
LAXM
IMO
9442419
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
SIEM OPAL, a tugboat flying the Norwegian flag, measures 91 metres on deck. She carries a 22-metre beam and a 6.8 m draft. She's on record as MMSI 259704000, call sign LAXM, IMO 9442419. The Master's Mate Safety Initiative Network welcomes SIEM OPAL — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for working boats
Built for boats that work — like SIEM OPAL.
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 08:56 UTC
Position
63.5958° N, 6.9050° E
Status
Under way (engine)
Speed
8.0 kn
Course
5°
Destination
HEIDRUN
ETA
06-09 22:00 UTC
Working the Norwegian coast? 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 SIEM OPAL 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 SIEM OPAL and switch it all on
Free to join · nothing to install to start · cancel anytime
About SIEM OPAL
What kind of vessel is SIEM OPAL?
SIEM OPAL is a Tug flagged to Norway.
Where was SIEM OPAL last seen?
SIEM OPAL was last reported in the Norwegian coast in Jun 2026 on public AIS.
What is SIEM OPAL's MMSI?
SIEM OPAL's MMSI is 259704000. Call sign LAXM. IMO 9442419.
How big is SIEM OPAL?
SIEM OPAL is about 91 m long, 22 m on the beam, drawing 6.8 m.
Is SIEM OPAL on the Master's Mate Safety Initiative Network?
Not yet. If SIEM OPAL is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.