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.
Towing Vessel
Capt John J Charpentier
MMSI 366902220 · Call sign WDQ2729
Not yet on Master's MateType
Towing Vessel
Flag
USALength
43.1 m
Beam
12.2 m
Draft
5.9 m
Call sign
WDQ2729
IMO
8218926
Official No.
1139986
AIS reports
2
An American service vessel, Capt John J Charpentier measures 43.1 metres. She carries a 12.2 m beam and a 5.9 m draft. On the registers she's MMSI 366902220, call sign WDQ2729, IMO 8218926. Capt John J Charpentier 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 Capt John J Charpentier.
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 Capt John J Charpentier 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 Capt John J Charpentier 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 Capt John J Charpentier and switch it all on
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About Capt John J Charpentier
What kind of vessel is Capt John J Charpentier?
Capt John J Charpentier is a Towing Vessel flagged to United States of America.
What is Capt John J Charpentier's MMSI?
Capt John J Charpentier's MMSI is 366902220. Call sign WDQ2729. IMO 8218926.
How big is Capt John J Charpentier?
Capt John J Charpentier is about 43.1 m long, 12.2 m on the beam, drawing 5.9 m.
Is Capt John J Charpentier on the Master's Mate Safety Initiative Network?
Not yet. If Capt John J Charpentier is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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