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Passenger (Inspected)
Thelmadale IV
MMSI 366940890 · Call sign WDP8067
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
21.6 m
Beam
6.2 m
Draft
1.9 m
Call sign
WDP8067
Official No.
620966
AIS reports
2
Out of the United States, Thelmadale IV is a 21.6-metre passenger vessel. She's built with a beam measuring 6.2 metres and a 1.9 m draft. She's listed under MMSI 366940890, call sign WDP8067. Thelmadale IV is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
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Keep every soul aboard Thelmadale IV safe.
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Live AIS position · Jun 9, 2026 23:29 UTC
Position
38.7955° N, 75.1005° W
Status
Under way (engine)
Speed
1.0 kn
Course
75°
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Distress Mesh
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Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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About Thelmadale IV
What kind of vessel is Thelmadale IV?
Thelmadale IV is a Passenger (Inspected) flagged to United States of America.
Where was Thelmadale IV last seen?
Thelmadale IV was last reported in off the U.S. East Coast on public AIS.
What is Thelmadale IV's MMSI?
Thelmadale IV's MMSI is 366940890. Call sign WDP8067.
How big is Thelmadale IV?
Thelmadale IV is about 21.6 m long, 6.2 m on the beam, drawing 1.9 m.
Is Thelmadale IV on the Master's Mate Safety Initiative Network?
Not yet. If Thelmadale IV is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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