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.
Other
SIERRA LIMA
MMSI 232065883 · Call sign MTHQ4
Not yet on Master's MateType
Other
Flag
GBRLength
8 m
Beam
3 m
Call sign
MTHQ4
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
Out of the United Kingdom, SIERRA LIMA is an 8-metre vessel. She's built with a beam measuring 3 metres. On the registers she's MMSI 232065883, call sign MTHQ4. Give SIERRA LIMA the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
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Is SIERRA LIMA your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
51.4936° N, 0.0281° E
Crossing the North 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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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SIERRA LIMA on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SIERRA LIMA and switch it all on
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About SIERRA LIMA
What kind of vessel is SIERRA LIMA?
SIERRA LIMA is a Other flagged to United Kingdom.
Where was SIERRA LIMA last seen?
SIERRA LIMA was last reported in the North Sea in Jun 2026 on public AIS.
What is SIERRA LIMA's MMSI?
SIERRA LIMA's MMSI is 232065883. Call sign MTHQ4.
How big is SIERRA LIMA?
SIERRA LIMA is about 8 m long, 3 m on the beam.
Is SIERRA LIMA on the Master's Mate Safety Initiative Network?
Not yet. If SIERRA LIMA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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