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
G. Shelby Friedrichs
MMSI 366983270 · Call sign WDB9813
Not yet on Master's MateType
Towing Vessel
Flag
USALength
30 m
Beam
8 m
Draft
4.1 m
Call sign
WDB9813
IMO
8992534
Official No.
280263
AIS reports
1
G. Shelby Friedrichs, a work boat wearing American colours, measures 30 metres on deck. Below, she has 8 metres in the beam and a draft measuring 4.1 metres. On AIS she shows as MMSI 366983270, call sign WDB9813, IMO 8992534. Bring G. Shelby Friedrichs aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like G. Shelby Friedrichs.
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 G. Shelby Friedrichs 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 G. Shelby Friedrichs 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 G. Shelby Friedrichs and switch it all on
Free to join · nothing to install to start · cancel anytime
About G. Shelby Friedrichs
What kind of vessel is G. Shelby Friedrichs?
G. Shelby Friedrichs is a Towing Vessel flagged to United States of America.
What is G. Shelby Friedrichs's MMSI?
G. Shelby Friedrichs's MMSI is 366983270. Call sign WDB9813. IMO 8992534.
How big is G. Shelby Friedrichs?
G. Shelby Friedrichs is about 30 m long, 8 m on the beam, drawing 4.1 m.
Is G. Shelby Friedrichs on the Master's Mate Safety Initiative Network?
Not yet. If G. Shelby Friedrichs is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.