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
SHERIDAN A
MMSI 367614860 · Call sign WDH9115
Not yet on Master's MateType
Towing Vessel
Flag
USALength
211 m
Beam
18 m
Draft
3.2 m
Call sign
WDH9115
Official No.
1251629
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
SHERIDAN A is a working vessel under the American flag, 211 metres on deck. She has 18 metres in the beam and a draft measuring 3.2 metres. Her papers read MMSI 367614860, call sign WDH9115. SHERIDAN A can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for working boats
Built for boats that work — like SHERIDAN A.
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
30.1049° N, 93.3103° W
Working the Gulf of Mexico? 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 SHERIDAN A 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 SHERIDAN A and switch it all on
Free to join · nothing to install to start · cancel anytime
About SHERIDAN A
What kind of vessel is SHERIDAN A?
SHERIDAN A is a Towing Vessel flagged to United States of America.
Where was SHERIDAN A last seen?
SHERIDAN A was last reported in the Gulf of Mexico in Jun 2026 on public AIS.
What is SHERIDAN A's MMSI?
SHERIDAN A's MMSI is 367614860. Call sign WDH9115.
How big is SHERIDAN A?
SHERIDAN A is about 211 m long, 18 m on the beam, drawing 3.2 m.
Is SHERIDAN A on the Master's Mate Safety Initiative Network?
Not yet. If SHERIDAN A 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.