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
HOS RED ROCK
MMSI 367585850 · Call sign WDG9245
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
81.9 m
Beam
19.5 m
Draft
7.5 m
Call sign
WDG9245
IMO
9647655
Official No.
1244591
AIS reports
1
HOS RED ROCK is a harbour workboat registered in the United States, 81.9 metres long. She has a beam measuring 19.5 metres and a draft of 7.5 m. She's listed under MMSI 367585850, call sign WDG9245, IMO 9647655. Claim HOS RED ROCK free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for working boats
Built for boats that work — like HOS RED ROCK.
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 HOS RED ROCK 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 HOS RED ROCK 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 HOS RED ROCK and switch it all on
Free to join · nothing to install to start · cancel anytime
About HOS RED ROCK
What kind of vessel is HOS RED ROCK?
HOS RED ROCK is a Offshore Supply Vessel flagged to United States of America.
What is HOS RED ROCK's MMSI?
HOS RED ROCK's MMSI is 367585850. Call sign WDG9245. IMO 9647655.
How big is HOS RED ROCK?
HOS RED ROCK is about 81.9 m long, 19.5 m on the beam, drawing 7.5 m.
Is HOS RED ROCK on the Master's Mate Safety Initiative Network?
Not yet. If HOS RED ROCK is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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