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
SIGNET WARHORSE II
MMSI 366885000 · Call sign WDH4884
Not yet on Master's MateType
Towing
Flag
USALength
46 m
Beam
14 m
Draft
7.4 m
Call sign
WDH4884
IMO
9388132
Official No.
621641
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
45
SIGNET WARHORSE II, a working craft under the American flag, measures 46 metres on deck. Below, she has a beam measuring 14 metres and a draft of 7.4 m. Officially she's MMSI 366885000, call sign WDH4884, IMO 9388132. SIGNET WARHORSE II can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working boats
Built for boats that work — like SIGNET WARHORSE II.
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 3, 2026
Position
25.7099° N, 80.0180° W
Wherever SIGNET WARHORSE II 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 SIGNET WARHORSE II 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 SIGNET WARHORSE II and switch it all on
Free to join · nothing to install to start · cancel anytime
About SIGNET WARHORSE II
What kind of vessel is SIGNET WARHORSE II?
SIGNET WARHORSE II is a Towing flagged to United States of America.
Where was SIGNET WARHORSE II last seen?
SIGNET WARHORSE II was last reported in around 26°N 80°W in Jun 2026 on public AIS.
What is SIGNET WARHORSE II's MMSI?
SIGNET WARHORSE II's MMSI is 366885000. Call sign WDH4884. IMO 9388132.
How big is SIGNET WARHORSE II?
SIGNET WARHORSE II is about 46 m long, 14 m on the beam, drawing 7.4 m.
Is SIGNET WARHORSE II on the Master's Mate Safety Initiative Network?
Not yet. If SIGNET WARHORSE II is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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