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
WILLIAM BREWSTER
MMSI 368157570 · Call sign WDL7154
Not yet on Master's MateType
Tug
Flag
USALength
21 m
Beam
4 m
Call sign
WDL7154
Official No.
655165
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
46
Out of the United States, WILLIAM BREWSTER is a 21-metre tugboat. She carries a beam of 4 m. Her papers read MMSI 368157570, call sign WDL7154. It's free to add WILLIAM BREWSTER to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working boats
Built for boats that work — like WILLIAM BREWSTER.
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 11:52 UTC
Position
40.7820° N, 73.9238° W
Status
Constrained by draught
Speed
1.3 kn
Course
51°
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 WILLIAM BREWSTER 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 WILLIAM BREWSTER and switch it all on
Free to join · nothing to install to start · cancel anytime
About WILLIAM BREWSTER
What kind of vessel is WILLIAM BREWSTER?
WILLIAM BREWSTER is a Tug flagged to United States of America.
Where was WILLIAM BREWSTER last seen?
WILLIAM BREWSTER was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is WILLIAM BREWSTER's MMSI?
WILLIAM BREWSTER's MMSI is 368157570. Call sign WDL7154.
How big is WILLIAM BREWSTER?
WILLIAM BREWSTER is about 21 m long, 4 m on the beam.
Is WILLIAM BREWSTER on the Master's Mate Safety Initiative Network?
Not yet. If WILLIAM BREWSTER 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.