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
ARTHUR F ZEMAN JR
MMSI 366867170 · Call sign WSC3513
Not yet on Master's MateType
Towing Vessel
Flag
USALength
23.5 m
Beam
8 m
Draft
3.1 m
Call sign
WSC3513
IMO
8980737
Official No.
693809
AIS reports
1
ARTHUR F ZEMAN JR flies the American flag — a 23.5-metre working vessel. Her hull carries 8 metres in the beam and a draft measuring 3.1 metres. On AIS she shows as MMSI 366867170, call sign WSC3513, IMO 8980737. ARTHUR F ZEMAN JR belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for working boats
Built for boats that work — like ARTHUR F ZEMAN JR.
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 ARTHUR F ZEMAN JR 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 ARTHUR F ZEMAN JR 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 ARTHUR F ZEMAN JR and switch it all on
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About ARTHUR F ZEMAN JR
What kind of vessel is ARTHUR F ZEMAN JR?
ARTHUR F ZEMAN JR is a Towing Vessel flagged to United States of America.
What is ARTHUR F ZEMAN JR's MMSI?
ARTHUR F ZEMAN JR's MMSI is 366867170. Call sign WSC3513. IMO 8980737.
How big is ARTHUR F ZEMAN JR?
ARTHUR F ZEMAN JR is about 23.5 m long, 8 m on the beam, drawing 3.1 m.
Is ARTHUR F ZEMAN JR on the Master's Mate Safety Initiative Network?
Not yet. If ARTHUR F ZEMAN JR is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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