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
Mary Wepfer
MMSI 367517760 · Call sign WDG2646
Not yet on Master's MateType
Towing Vessel
Flag
USALength
17.1 m
Beam
7.3 m
Draft
2.3 m
Call sign
WDG2646
Official No.
614906
AIS reports
1
An American service vessel, Mary Wepfer measures 17.1 metres. Mary Wepfer has 7.3 metres in the beam and a 2.3 m draft. On AIS she shows as MMSI 367517760, call sign WDG2646. Mary Wepfer is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for working boats
Built for boats that work — like Mary Wepfer.
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 Mary Wepfer 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 Mary Wepfer 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 Mary Wepfer and switch it all on
Free to join · nothing to install to start · cancel anytime
About Mary Wepfer
What kind of vessel is Mary Wepfer?
Mary Wepfer is a Towing Vessel flagged to United States of America.
What is Mary Wepfer's MMSI?
Mary Wepfer's MMSI is 367517760. Call sign WDG2646.
How big is Mary Wepfer?
Mary Wepfer is about 17.1 m long, 7.3 m on the beam, drawing 2.3 m.
Is Mary Wepfer on the Master's Mate Safety Initiative Network?
Not yet. If Mary Wepfer is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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