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.
UNSPECIFIED
HESPERUS II
U.S. Official No. 500734
Not yet on Master's MateType
UNSPECIFIED
Flag
USALength
11.7 m
Beam
4.4 m
Draft
2.4 m
First reported
Jun 2026
AIS reports
1
On the American registry, HESPERUS II is an 11.7-metre boat. HESPERUS II has a beam measuring 4.4 metres and a 2.4 m draft. Look for U.S. official number 500734. Claim HESPERUS II free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
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Is HESPERUS II 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
Wherever HESPERUS II roams, 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 HESPERUS II 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 HESPERUS II and switch it all on
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About HESPERUS II
What kind of vessel is HESPERUS II?
HESPERUS II is a UNSPECIFIED flagged to United States of America.
What is HESPERUS II's U.S. Official No.?
HESPERUS II's U.S. Official No. is 500734.
How big is HESPERUS II?
HESPERUS II is about 11.7 m long, 4.4 m on the beam, drawing 2.4 m.
Is HESPERUS II on the Master's Mate Safety Initiative Network?
Not yet. If HESPERUS II is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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