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.
Fishing
DEFENDER
MMSI 303303000 · Call sign WDB7740
Not yet on Master's MateType
Fishing
Flag
USALength
41 m
Beam
9 m
Draft
6 m
Call sign
WDB7740
IMO
8516861
Official No.
665983
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
89
On the American registry, DEFENDER is a 41-metre working fishing boat. She's built with a beam measuring 9 metres and a 6-metre draft. Her papers read MMSI 303303000, call sign WDB7740, IMO 8516861. Join DEFENDER to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for working captains
Know where the fleet is. Get DEFENDER home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 07:17 UTC
Position
47.6590° N, 122.3784° W
Status
Moored
Speed
0.0 kn
Course
313°
Destination
SHILSHOAL WASH
ETA
12-04 12:00 UTC
Fishing the Salish Sea? 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 captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put DEFENDER on the map. It hands you the full bridge:
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.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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 DEFENDER and switch it all on
Free to join · nothing to install to start · cancel anytime
About DEFENDER
What kind of vessel is DEFENDER?
DEFENDER is a Fishing flagged to United States of America.
Where was DEFENDER last seen?
DEFENDER was last reported in the Salish Sea in Jun 2026 on public AIS.
What is DEFENDER's MMSI?
DEFENDER's MMSI is 303303000. Call sign WDB7740. IMO 8516861.
How big is DEFENDER?
DEFENDER is about 41 m long, 9 m on the beam, drawing 6 m.
Is DEFENDER on the Master's Mate Safety Initiative Network?
Not yet. If DEFENDER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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