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
FORT MCHENRY
MMSI 369131000 · Call sign WDI9336
Not yet on Master's MateType
Tug
Flag
USALength
29 m
Beam
10 m
Draft
3.7 m
Call sign
WDI9336
IMO
9804681
Official No.
9000009
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
66
An American tugboat, FORT MCHENRY measures 29 metres. She's built with a 10 m beam and a 3.7 m draft. Her registration reads MMSI 369131000, call sign WDI9336, IMO 9804681. Working vessels like FORT MCHENRY are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.
Free forever · No credit card · for working boats
Built for boats that work — like FORT MCHENRY.
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
Live AIS position · Jun 9, 2026 14:44 UTC
Position
40.5371° N, 74.2545° W
Status
Under way (engine)
Speed
0.0 kn
Course
302°
Destination
USNYC
ETA
06-16 20:00 UTC
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 FORT MCHENRY 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 FORT MCHENRY and switch it all on
Free to join · nothing to install to start · cancel anytime
About FORT MCHENRY
What kind of vessel is FORT MCHENRY?
FORT MCHENRY is a Tug flagged to United States of America.
Where was FORT MCHENRY last seen?
FORT MCHENRY was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is FORT MCHENRY's MMSI?
FORT MCHENRY's MMSI is 369131000. Call sign WDI9336. IMO 9804681.
How big is FORT MCHENRY?
FORT MCHENRY is about 29 m long, 10 m on the beam, drawing 3.7 m.
Is FORT MCHENRY on the Master's Mate Safety Initiative Network?
Not yet. If FORT MCHENRY 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.