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.
Tug
J ARNOLD WITTE
MMSI 368211990 · Call sign WDM5041
Not yet on Master's MateType
Tug
Flag
USALength
23 m
Beam
8 m
Draft
3 m
Call sign
WDM5041
Official No.
1316694
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
67
An American harbour tug, J ARNOLD WITTE measures 23 metres. She has a beam measuring 8 metres and a draft of 3 m. On the registers she's MMSI 368211990, call sign WDM5041. J ARNOLD WITTE 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 J ARNOLD WITTE.
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
Last known position · Jun 4, 2026
Position
40.7836° N, 73.8974° W
Working off the U.S. East Coast? 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 J ARNOLD WITTE 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 J ARNOLD WITTE and switch it all on
Free to join · nothing to install to start · cancel anytime
About J ARNOLD WITTE
What kind of vessel is J ARNOLD WITTE?
J ARNOLD WITTE is a Tug flagged to United States of America.
Where was J ARNOLD WITTE last seen?
J ARNOLD WITTE was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is J ARNOLD WITTE's MMSI?
J ARNOLD WITTE's MMSI is 368211990. Call sign WDM5041.
How big is J ARNOLD WITTE?
J ARNOLD WITTE is about 23 m long, 8 m on the beam, drawing 3 m.
Is J ARNOLD WITTE on the Master's Mate Safety Initiative Network?
Not yet. If J ARNOLD WITTE 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.