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
Harvey Cowboy
MMSI 367483260 · Call sign WDP7899
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
61 m
Beam
14.6 m
Draft
4.9 m
Call sign
WDP7899
IMO
9617703
Official No.
1230937
AIS reports
5
Harvey Cowboy is an American service vessel, measuring 61 metres. She carries a 14.6 m beam and a 4.9 m draft. She's listed under MMSI 367483260, call sign WDP7899, IMO 9617703. It's free to add Harvey Cowboy to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working boats
Built for boats that work — like Harvey Cowboy.
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 Harvey Cowboy 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 Harvey Cowboy 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 Harvey Cowboy and switch it all on
Free to join · nothing to install to start · cancel anytime
About Harvey Cowboy
What kind of vessel is Harvey Cowboy?
Harvey Cowboy is a Offshore Supply Vessel flagged to United States of America.
What is Harvey Cowboy's MMSI?
Harvey Cowboy's MMSI is 367483260. Call sign WDP7899. IMO 9617703.
How big is Harvey Cowboy?
Harvey Cowboy is about 61 m long, 14.6 m on the beam, drawing 4.9 m.
Is Harvey Cowboy on the Master's Mate Safety Initiative Network?
Not yet. If Harvey Cowboy is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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