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.
Offshore Supply Vessel
HOPPER
U.S. Official No. 1066913
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
12.3 m
Beam
4.3 m
Draft
1.9 m
Hull ID
XYU5740SD898
First reported
Jun 2026
AIS reports
1
HOPPER is an American work boat — 12.3 metres overall. Below, she has a 4.3-metre beam and a draft measuring 1.9 metres. Find her under U.S. official number 1066913. HOPPER is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for working boats
Built for boats that work — like HOPPER.
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
Wherever HOPPER 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put HOPPER 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 HOPPER and switch it all on
Free to join · nothing to install to start · cancel anytime
About HOPPER
What kind of vessel is HOPPER?
HOPPER is a Offshore Supply Vessel flagged to United States of America.
What is HOPPER's U.S. Official No.?
HOPPER's U.S. Official No. is 1066913.
How big is HOPPER?
HOPPER is about 12.3 m long, 4.3 m on the beam, drawing 1.9 m.
Is HOPPER on the Master's Mate Safety Initiative Network?
Not yet. If HOPPER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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